The Flight of the Auk
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Dan Gavin
The Flight of the Auk

Adaptability: One of the fundamentals of survival is the ability to adapt quickly to a changing landscape.

In June 1844, the last Great Auk was killed, ironically, so it could nest permanently in a dusty museum.

Akin to the Dodo: The Great Auk was a helpless, hapless, flightless bird that bred in colonies on some rocky islands in the North Atlantic. You may never have heard of it. Perhaps, because the sly insult “strong as an Auk” doesn’t sting like “cunning as a Dodo”, and “Auk”, could be linguistically confused with “Ox”.

What Is It: The Great Auk is similar to a penguin: flightless and helpless. Why aren’t the penguins extinct, too? They live in Antarctica. People haven’t gone there in great numbers. For the Auk, they lived on an island used by sailors as a pantry for restocking supplies, like bird meat. Antarctica isn’t somewhere people regularly frequent for the same purpose. It’s inconvenient, and inconvenience to humans may have saved the penguin.

Extinction: Whether Dodo, Great Auk, or Wooly Mammoth, the end was the same—extinction. Extinction due a cataclysmic collision of unfortunate events. The animals had developed defenses ideal for the geographic bubble in which they lived which was a specific geographic ecosystem.  Suddenly their bubbles popped. The conditions changed. Their serene world careened into the 19th century, and they lost. They lost because of an inability to adapt.

We Adapt: Humans are different. We don’t adapt to suit our environment. We adapt our environment to suit ourselves. This is our axiom. Now, whether this application of adaptation is a moral one, is not the purpose of this discussion.

Change to Survive: Situations and environments change. Those who most nimbly adapt will survive. The others will not. For a case study, look at Sears. They OWNED the mail-order business. Then came Jeff Bezos in his tiny garage selling books—over the internet. No threat there. Until it was one. It was too late for Sears. Sears SHOULD HAVE owned the online mail-order business. The same way they owned the magazine mail-order world. Like the Great Auk, they failed to recognize a threat. With their ineffective wings and clunky feet, Sears bumbled into the 21st century, failing to adapt quickly when the environment changed.

The Trouble of Inconvenience: For Sears to change its business model would have been inconvenient. People don’t like inconvenience. We develop a bubble of comfortable systems and familiar procedures. We actively reject anything that may disrupt the playful bubble of familiarity.

Hard for the Bad Guys: As defenders of our world, we can use this natural human aversion to personal inconvenience to our advantage. If we make it sufficiently inconvenient for a cyber-criminal to successfully attack us, it may demotivate them and cause them to seek a softer target.

Contact CyberEye – They Know: Unfortunately, this article doesn’t provide the space to list everything you can do to introduce inconvenience into your cyber defense plan. Feel free to contact the Cyber Guys from CyberEye for details.

Recognize the Threat: Both the 19th century Great Auk and the 20th century Great Sears, didn’t recognize the threat early enough. At best, the great Auk could have changed breeding sites to a less convenient location, then decrease the frequency of human interaction. Sears could have bought Amazon’s business model for a few thousand dollars and adapted to it.

Make Adjustments: In 2021, if your business survives the tragedy of COVID, the most likely cause for failure will be a lack of flexibility in your business processes. There is a cyclone of cyber-criminal activity on the near horizon. There are threats we’ve never even considered about to drop anchor just offshore.  Sadly, change is the axiom of the cyber-threat landscape.

The Internet is NOT Mr. Roger’s Neighborhood
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Dan Gavin
The Internet is NOT Mr. Roger’s Neighborhood

Desert Animals: Before moving to Arizona, we had only seen coyotes in photographs.  Javalina or coatimundi? Never heard of them. Mom moved here before us. She and her little 10-year-old black and white shih tzu, Jasmine.

Coyote Magic: Mom was fascinated by the coyotes she saw daily running through the desert across the street from her new house. To her it was as magical as the tiny trolley on Mr. Roger’s Neighborhood. But the magic was not destined to last.

The Awakening: One night she let Jasmine out the front door to do her “business” before bed, just like she did every night. But this time, as she returned to her office chair by the front door, almost immediately there was an odd noise. She got this feeling inside her told her something was wrong. She bolted for the door. Jasmine was gone.

Predators: I know that’s hard for some of you to read. It was tragic for her, and for the grandchildren. We all loved Jasmine. But it illustrates the point. No matter how many times she saw the coyotes, AND knowing that coyotes are predators, there was that natural human tendency to disbelieve that could ever happen to her.

Not to Me: She’s not alone. Regardless of the situation, humans are inclined to think the worst will never happen to them. For example, we have auto insurance. Not because WE are bad drivers. No, we insure ourselves to protect us from the poor choices of others.

Online: How does that apply to life online? Believe it or not, there REALLY ARE organized crime syndicates that are planning the next big hit. They normally target big businesses – the Big Game. But they have found that the big businesses are getting better at protecting themselves. So they target small businesses who traditionally have weaker defenses, but who connect their smaller network to the big company network, ESPECIALLY now that more people are working from home. IT departments of small businesses have had to scramble to figure out how to allow remote workers. So the simplest solution has been to open a port in the firewall and allow the worker to use Remote Desktop.

Simple, not Secure: That would be a great solution – in Mr. Roger’s Neighborhood. But we don’t live there. A report I reviewed this week provided compelling statistics advising NOT to allow that type of remote access. One large company was breached when a nation-state threat was able to brute force a login through that open firewall port. A brute force attack uses automation to generate a large number of guesses at a password until they get in. 

Act Now: If that has been the solution at your company, stop everything and get that port closed NOW. There are better solutions. And in many cases, you can have remote workers without providing them remote access to your network.

It Can Happen to You: People tend to make poor choices that provide the right opportunity for a threat. Even when the threats are as obvious as ferocious predators running down the street next to your house. The internet is TEEMING with ferocious predators. Sometimes those choices can cause irreparable damage to your business, or your family’s livelihood. By the way, those ferocious predators on the internet are allocating huge budgets to enhance their attack capabilities. Our defense is only as good as OUR budget allocation.  Don’t think that it couldn’t happen here in a small city.  It already has and is more common than you would think.

Congratulations, You Are About to Lose the Super Bowl
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Dan Gavin
Congratulations, You Are About to Lose the Super Bowl

Jets in Super Bowl: The last time the New York Jets won a Super Bowl (in fact, the ONLY time they ever won), Richard Nixon was elected president of the United States. The year was 1969, kids.

Intel on Opposing Team: One thing about being in the Super Bowl is both teams know who they are up against. The opposing team has just finished an entire season of football. Both teams will review the video recordings of every game so they know the strengths and weaknesses of the other team, and of their own.

Your Turn: Imagine YOU are the New York Jets, and you’ve just been notified that through a quirk of fate, you are playing in the next Super Bowl! Congratulations! Oh, but there is a catch. You don’t know who you are playing.

Cyber Super Bowl: What does this scenario have to do with cyber security, you ask? Actually, quite a lot. For one, almost every network, especially homes and small businesses, are about as well defended as the New York Jets. Which means, not very well. And offense is completely out of the question.

Offense & Defense: As with football, so with networks. We need BOTH defensive AND offensive lines. We’ve already established that offensive cyber operations are off the table for home users and small businesses. Since we aren’t permitted legally to conduct offensive cyber operations, the next best thing is to detect an intruder early. In a computer network, defense equates to prevention. Prevention consists of firewalls and antimalware. Conversely, offense equates to detection.  Detection consists of Endpoint Detection and Response tools, as well as Security Operations Center (SOC) analysts responding to alerts. In addition, your team can leverage Cyber Threat Intelligence (CTI) from the Intelligence-sharing groups and then actively hunt for those very threats on your network.

Prevention is Affordable: For most home users and small businesses, prevention is all they can afford. Because prevention is usually an automated process facilitated by software, you set it and forget it. Since most home and business users are running Windows 10, you have Windows Defender installed by default, and that is the best option for antimalware and the host firewall.

Detection: Detection is tougher because it usually involves hiring an SOC team (or tasking your IT staff with additional duty, for which they aren’t trained). For a small business and home user, detection and threat hunting is only feasible with a Managed Security Service Provider (MSSP). For example, Dell purchased SecureWorks a few years ago, and AT&T purchased AlienVault to provide those services. The downside is most of the MSSPs target large businesses with deeper pockets. You just need to make sure you pick a vendor that can provide the sweet spot of security and cost.

Cover Your Bases: The sweet spot is really about covering all your bases (forgive the mixed metaphor). Getting prevention and detection capabilities in place. But even when you do that, the persistent attackers will still get through. Eventually. That’s where the cyber insurance comes in. A great place to start looking for solutions would be Stickler Webb Insurance. There you can get cyber insurance quotes and find a cost effective SOC vendor to provide the offensive line.

Your Offensive Line: You are not going to the Super Bowl. If you have a computer network, you are already IN the Super Bowl. Relying on prevention alone is like going to the Super Bowl with only your defensive line. Imagine how that game would turn out. You are in the game whether you like it or not. Make sure you at least HAVE an offensive line.

Back to the Basics
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Dan Gavin
Back to the Basics

Hills Are Alive: In the Disney classic, “The Sound of Music,” the troublesome but optimistic nun turned nanny, Maria, is teaching the Von Trapp children how to sing since they did not know how.  She starts into song saying “Let’s start at the very beginning, a very good place to start, when you read begin with A-B-C, when you sing begin with do-re-mi.” Here at the Cyber Tripwire, we change that second part a bit to apply to cybersecurity.  “When you cyber, begin with C-I-A.”   OK, so maybe it won’t be sung by teenagers around the world and I’ll have to postpone my song writing career.

C-I-A: With cybersecurity, getting back to the basics is as easy as C-I-A … Confidentiality, Integrity, and Availability.  These are the high level basics.  Confidentiality means that only the people who are supposed to access the data have access.   Integrity means that there are no unauthorized changes to data at all during transmission, in use, or while stored.  Availability means that the computer resources are ready and can be accessed by legitimate users.  Together they are referred to as the “C-I-A Triad.”  For most organizations a chink in the armor of any of the three could cause havoc. Let’s look at each one closer.

Confidentiality: The importance of confidentiality differs depending on your industry.  If you have a secret recipe like Colonel Sanders, it is critical.  If your organization handles any personal information, the protection of that confidential information is required by law.  Here are some examples of failure to maintain confidentiality.  An unauthorized person accesses data.  An unauthorized process gains access to data. Consider a hacker that uses malware to copy your data.  An unauthorized person accesses an approximate data value, a range. For instance if someone found out that an employee’s salary is within a certain range.   Loss of confidentiality could even be an unauthorized person finding out that a piece of data exists.  If you are sending personal information over unencrypted email, the confidentiality of the data is highly at risk. 

Integrity: Integrity does not necessarily require hacker intervention to be lost.  It is possible to lose integrity through careless use by an authorized user.  For instance, a user that accidently saves unapproved modification to a file without realizing it.  Information system errors could also affect the integrity of data.  In order for data to have integrity, it needs to be precise, accurate, meaningful and useful. Modification made must use acceptable ways and only by authorized people or processes.  When a hacker captures unencrypted data, changes it, and sends it to the original recipient, the integrity of that data is lost.

Availability: Availability allows authorized users to access and use network resources, like a printer or a website.  Available resources must complete the service request in a reasonable time.  When I was in college, I remember that the telephone networks lost availability every Mother’s Day.  The telephones circuits could not handle the flood of calls.   Similar things happen today on the internet when there is an Amazon Day or occasionally during Cyber Monday.  When hackers use malware to overload a particular service or website, it is called a Denial Of Service (DOS) attack.  A DOS attack is intended to remove the availability of its victim’s resources.   As many of you know from experience, you don’t need a hacker to lose availability.  It could be lost with a malfunctioning resource, or an upgrade gone bad.

Auf Weidersehen: So there it is, the basics of cybersecurity, the C-I-A Triad.  Now, we can all go back and singing the rest of the Von Trapp family songs – “So long, farewell, auf weidersehen, good night.”

The Saga of the Stolen Stingray
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Dan Gavin
The Saga of the Stolen Stingray

Protect It: I imagine one day I’ll own a 1970 Corvette Stingray. It will have its own garage. I’ll lock the garage doors when I’m not using it to make sure it’s safe. I’ll put an alarm on the building—to be sure. And I WON’T leave the keys in it!

Hijacked: A few months ago, my mother-in-law told me her email “broke.” For a few days, she hadn’t received any emails in her Outlook Client. So, I took a peek at her Cox webmail. I found a message stating the account was locked, due to suspicious activity. After a couple hours with tech support, we were able to get in. We found the account had been sending hundreds of spam emails every day. A criminal had hijacked her mail.

Recently I read a blog post in Dentaltown from a dentist victimized like this. His email account had become an unwitting offender. How did this happen to them? Will it happen to you? How can you prevent it?

Credential Stuffing: These email accounts fell victim to what we call a “credential stuffing attack.” It’s often performed by software known as “bots.” See, websites should be storing your username/password pairs (AKA “credentials”) in an encrypted database, but they often don’t. It’s like storing a 1970 Corvette Stingray in your garage (keys in the switch), and then leaving the door wide open. You’d never do that, but websites do—all the time!

Darkweb Dump: Criminals break into those websites and scoop out your credentials. Then, those same criminals dump your credentials on the darkweb. Other crooks snag these breached credentials from darkweb, Amazon-like sites. They then code their bots with lists of credentials, including yours. Finally, the bot logs into your email account.

Picture this:  You use your Gmail address as the username to log into scrapbook.com. Then, you use the same password for scrapbook.com that you use for your Gmail account. A criminal breaks into scrapbook.com. If the database isn’t encrypted (the doors were left open), the thieves steal your credentials. In essence, the criminal drove away in your beloved Stingray! It happened because you used the same key for every door you own: Your house, your Stingray garage, your business office, your mailbox…  You get my point? Worst of all, you left a copy of the key taped to the front door of your house, right in plain sight.

Unique Passwords: We often recommend in these articles that you make sure and use unique passwords for the bucketload of websites you log into. Certain sites are more critical, for example, your email account, as well as your bank account and other accounts containing your financial information. Use a password manager like Bitwarden. If you use a long, unique passphrase, instead of a short password,  and you use a different passphrase for each site you visit, then you reduce the chance of becoming a credential stuffing victim.

A Turkish Taxi or Going to the Cloud
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Dan Gavin
A Turkish Taxi or Going to the Cloud

Traveling: Did you know that when you take a taxi cab in Turkey and there is an accident while you are in the car, then you, the passenger, are liable for the damages? Why? Because you hired the cab. That is what it means for your business when you “go to the cloud.” Businesses think the cloud solves all of their cybersecurity problems, but that is not the case. Your business is responsible.

Regulatory Requirements: For most businesses, they have at least one set of regulatory compliance rules to abide by when handling data. For example, if your business accepts credit cards as payment, you are subject to the Payment Card Industry Data Security Standard (PCI DSS). If you track any Personally Identifiable Information (PII) on your customers or employees, you are subject to the Privacy Act. If you are a health care provider and handle Protected Health Information (PHI), you need to be compliant with the Health Insurance Portability and Accountability Act (HIPAA). Healthcare providers have the trifecta of data protection liability – having PCI, PII, and PHI to worry about. In the cybersecurity world, regulatory requirements drive your data security plan.

Data Security: The definition of data security from technopedia.com is “protective digital privacy measures that are applied to prevent unauthorized access to computers, databases and websites.” In other words, data security is how you protect your customer’s data. Although there are many laws, regulations, and guidelines, they do not dictate HOW to implement the protective measures. THAT is up to the individual business owners to decide. This is important because the business is held legally responsible for any privacy breach that may occur whether the data is in the cloud or in your back-office data closet. You are responsible for its protection.

Cloud Absolution? No: Some business owners think that if they push their system to the cloud they will be absolved of data security. Many cloud service providers offer Software as a Service (SaaS) solutions for just about every application these days, making it a turn-key solution for many businesses. One example is Office 365. it reduces local IT costs and in most cases provides an increase in service. In many cases, the business can coordinate with the provider to pay for controls like encryption and firewalls in the cloud. Sounds great, doesn’t it? So where’s the problem?

Who’s In Charge: The cloud customer (that’s you) decides who gets access to the application. The employees are usually working from a laptop, desktop, tablet or phone to access the application.

Threats Still Exist: The cloud is NOT threat repellant. If any of your business computers get key-logger malware (malware that records your keystrokes), the hacker will steal your cloud login credentials and use them to access to your data from anywhere in the world. Your client data that you use daily is sitting on the computer memory of your local device. If the data is (heaven forbid) sent unencrypted to the cloud, you are subject to interception of your data with what’s called a man-in-the-middle attack. This happens often when using public Wi-Fi hotspots. Employees are also susceptible to social engineering where they are tricked into clicking on a malicious link or even provide their password information over the phone. As we noted in other articles, the dark web has usernames and passwords available from previous breaches. If people re-use their passwords, the hacker may get access that way too.

Due Diligence: Even in the cloud, business owners must have due diligence with data security because they are liable. Your employees need cybersecurity training. Their devices should have antivirus and endpoint detection monitoring – agents watching for unusual behavior. Businesses should have cyber insurance to transfer the risk in case a breach occurs despite best efforts.

The Bus?: So, if you are in Turkey you may want to take the bus. Using cloud services on the other hand, there isn’t any substitute for a robust security plan.

Your BlueTooth Is Showing
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Dan Gavin
Your BlueTooth Is Showing

Is Your Bluetooth On?: I’ll bet the Bluetooth on your phone is enabled right now. How you can tell: when you get in the car and it automatically switches to the hands-free option. This is how most people operate. It’s convenient.

What Is It?: So, what is Bluetooth? It’s like Wi-Fi but for short distances and its built into nearly every smartphone. In an iPhone you use it to Airdrop files to your friends. It connects to your wireless earbuds so you can listen to Sgt. Pepper’s Lonely Hearts Club Band. It can also be used to steal files off your phone without your knowledge.

Snarfing: I’m referring to the attack tactic called Bluesnarfing. This attack exploits a weakness in some mobile phone Bluetooth implementations and it provides unauthorized access to the personal information stored on your phone.

How It Works: Here’s the scenario. You are attending an event outdoors and properly observing the government recommended social distance of six feet. Maybe you’re at the grocery store or one of the few remaining restaurants in town that still allow sit-down dining (like Dickies over by Food City). Someone sits six-feet next to you. They then create a Bluetooth connection to your smart phone, and capture the data stored on it. All without your notice or consent!

Exposure: Why is this important to you? This attack can expose your emails, contact lists, and text messages. Literally anything you store on your phone. Do you have a photo of your drivers license or social security card in there? Anything else you don’t want to become public?

What Risks?: Maybe you think the risk isn’t very high. I mean, how important are you really? In a way, this is conceptually similar to ransomware attacks. Your data is held for ransom. If an attacker gets access to any sensitive data on your phone, they can simply email you anonymously and request a few Bitcoin to have the data deleted. In case you were wondering, at the time of this writing, Bitcoin traded for $11,345.96 per coin. So yes, it’s worth the effort for someone to steal your data.

Please Stop It: Now you may be wondering how you can stop this attack, or if it’s even worth it to try. I mean, are you really at risk? Mitigation is easy. Turn off the Bluetooth when you are in public places. It takes almost no effort on your part. As for risk. Do you have sensitive data on your phone?

What Bugs You?: Now that I have your attention. Bluesnarfing isn’t the only thing that should terrify you. The really scary one is Bluebugging. Bluebugging allows an attacker to have COMPLETE control over your phone. If your phone is Bluebugged, an attacker can make and receive calls over your phone, AND eavesdrop on YOUR phone calls.

Opportunity: Some of this may have sounded like scenes from Mission Impossible, but Bluesnarfing and Bluebugging aren’t make-believe.  And you don’t need to be Ethan Hunt to become a target. As with Ransomware, sometimes all a cyber-criminal needs is an opportunity. Leaving your Bluetooth on all the time is convenient for sure. For both you AND the criminal.

Canary In A Coal Mine
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Dan Gavin
Canary In A Coal Mine

Why Canaries?: Beginning in 1911 and all the way through 1986, coal miners would bring a small bird, usually a canary, into the mine with them.  During the blasting, the miners could be exposed to carbon monoxide or other poisonous gases.   The canaries were brought down into the mine as an early detection device.   Because the canary is much more vulnerable to airborne gases, the canary would die upon the first detection of poison.  If the miners found a dead canary, danger was in the air and it was time to get out.

Canary Tokens: In the cyber world, “canary tokens” or canary files are used in a similar manner – to see if danger is in the air.  A canary token is a digital file that contains a tracker and a trigger.  The idea is to put these files throughout your file system with enticing names like “passwords” or “HR Salary List” or something similar. If an attacker would access the system and open the file, the trigger would go off and the tracker would be able to annotate the general location of the hacker to you via email.  The general idea is that you now know if someone is snooping around on your device and you can protect yourself from the intrusion.

Try It: You can try this on your home or work computers for free.  https://canarytokens.org/ provides different types of canary tokens for your use.  You select the type of file, provide your email for notification, and a reminder where you will be putting the token.  I recently tested this and the site was able to pinpoint my location as accurately as to my neighborhood, not just the city. 

Deception: This is one aspect of an active (or proactive) cyber defense called deception.  Deception, as the name implies, is looking to deceive or fool the attacker causing the attacker to make noise as to be detected, and subsequently allowing the user to protect the assets. 

Honeypots: In some organizations, IT departments may put out a fake server on the network called a “honeypot.”  The server would not have any of the usual security protections thus purposefully making it an easy target for the hackers.  The server would be full of fake files and a labyrinth of directories to traverse.  No one in the organization has a reason to be on the server, so the only reasons to be on the server are mischievous or nefarious.   This gives the cybersecurity department an insight into the tactics and procedures that they need to defend against.  It also wastes the hacker’s time.  If the hacker is busy in the honeypot, he is not attacking your real assets.

HoneyNets: A “honeynet” is similar to a honeypot, except that it is an entire network of honeypots.  Larger organizations with critical assets may employ a honeynet to distract the hackers and cause them to make noise on the network.  Setting the traps throughout the network allows for the early detection the organization desired. 

Early Detection Is A Must: Just like the coal miners of the twentieth century, the cyber world needs the early detection of danger that the canary provides to stay safe.  

Put On Your Cyber Armor Before Your First Cup
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Dan Gavin
Put On Your Cyber Armor Before Your First Cup

Knights Prepare: In the early Middle Ages, knights spent hours getting ready for battle putting on their armor with the help of a squire.  There were hooded coats, trousers, gloves and shoes made of chain mail. Add the helmet, shield, and sword, and they were ready for war.

Cyber Protection: In order to be safe in the cyber world, computer users need to be prepared for the cyber battle that we did not request. We need protection.   Here are two examples of attacks and how to defend your home or business.

Ransomware Attacks: To avoid having to pay the ransom for your data held hostage, your organization should be backing up data nightly or more often if operations require.  In that case, you will only lose one day’s worth of data plus the time and resources it takes to restore your infected system.    

Suncrypt: This happened to Haywood County School District in North Carolina.  Their computers were attacked by Suncrypt ransomware.  They did not pay the ransom because they had backups, however, they had to delay school for a week to restore everything.  Suncrypt uses a Windows admin utility called “PowerShell” to send a file to execute on other computers in order to rename and encrypt every folder on the infected computer. The hackers now have your data hostage.

Could It Have Been Avoided?: What could the school district have done to avoid the infection altogether? 

Admin Privileges: First, the person who clicked on the phishing email had “administrative” privileges.  Cybersecurity has a concept called “least privilege” where a user has a least amount of privilege to do her work.  All internet browsing and email reading should be done as a non-admin user.  It is critical to only use admin privileges when performing admin functions (configuration and installation).

Outbound Powershell: Second, the computer security policy allowed the use of outbound PowerShell.  The system policy should have disabled outbound PowerShell capability. Powershell is the new favorite of hackers.  According to https://news.softpedia.com/news/malware-created-with-microsoft-powershell-is-on-the-rise-503103.shtml   eighty-seven percent (87%) of common malware uses PowerShell. This one change to your system can block much of the current malware.

Controlled Folder Access: Finally, for this particular attack, and those like it, the entire attack would have been thwarted if the systems had a simple setting enabled called “Controlled Folder Access.”  This feature allows only authorized applications and users to modify folders.  This would have completely blocked Suncrypt.

Phishing Attacks:  Phishing is getting very complex.  There are new targeted phishing campaigns where emails are sent to company users claiming to be from the IT Department.  The emails explain that certain sent emails were quarantined and provides a link for the user to login and review the files.  The link takes you to a screen that looks exactly like the company login.  The hackers grab the user’s credentials when they attempt to login and fix the problem.

Don’t Click It: The lesson here is to always hover over any link.  Do NOT click the link without checking it.  When you hover over the link, the details of the link show in the bottom left-hand corner of your browser or pops out on your email application.  Verify the entire link carefully. Hackers can be creative with their domain names making them similar to the real domain names. So look closely.   When it comes to links, hover, hover, and hover again. 

Put Your Cyber Armor On: So, along with that first cup of coffee or tea in the morning, remember to put on your cyber armor before you check your emails.

Defending the Castle of Gondor
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Dan Gavin
Defending the Castle of Gondor

The Defense: The brutal battle of the Pelennor Fields in The Lord of the Rings epic, is instructive for cyber defense. Gandalf, the White Wizard, was charged with defending Minas Tirith, and the majestic Castle of Gondor. The castle was constructed with a series of concentric castle walls for protection.  During the attack of Dark Lord Sauron’s minions, Gandalf tried to hold ground.  Eventually, the first wall was breached, so Gandalf ordered his army back behind the next wall.  The situation was bleak, but moving behind the next interior wall bought them time as they waited for Aragorn to come with reinforcements.

Cyber Defense: Cybersecurity for your organization is a lot like defending the Castle of Gondor. You need to slow down the attackers before they get to your critical assets. Protection in layers in the cyber world, much like that concentric castle, is called “defense in depth.”  An article from Force Point (https://www.forcepoint.com/cyber-edu/defense-depth) defines it well. “Defense in Depth (DiD) is an approach to cybersecurity in which a series of defensive mechanisms are layered in order to protect valuable data and information.”  With cyber DiD, like with the Castle of Gondor, if one set of defenses fails, there is another mechanism in place to impede the attack.  Sometimes the cyber DiD is called the castle defense due to the parallels between cyber warfare and physical warfare.

Make It Tough: The goal of DiD is to slow down the attacker and get them to make “noise,” so they can be detected, and the user can get reinforcements.  Unlike Gondor, where the siege was quite obvious, cyber-attacks can go undetected for weeks and even months.  This is where your cyber-layered defenses can help to slow the attacks down and make some noise.

Controls: We discussed controls last week.  A control is an action, a device, a procedure, or a technique that removes or reduces a vulnerability. Controls, when used in depth, can make severe vulnerabilities hard for attackers to take advantage of, or exploit.

One Is Not Enough: In the cyber world, there is no single control that can successfully protect against every single type of attack.  For your network, the expensive firewall is not going to stop everything, nor will the next- generation anti-virus.  You need to have a layered cyber strategy that includes preventive, detective, and deceptive controls to protect your network. 

Layered Defenses: A layered defense would start with the basics of firewalls and anti-virus/anti-malware, but it might also include an intrusion prevention system, end-point detection, centralized monitoring, encryption, web application firewalls, and access control lists, to name a few.  Besides these technical controls, you can also add procedural and policy controls – a set of rules to follow, and the proper way of doing things.  In addition, you can work on human security by adding cybersecurity training to your layered defense.  Human security is critical, as all the leading-edge technology is helpless if the end user provides the hacker the keys to the kingdom. 

Held Out Long Enough: Aragorn brought the Army of the Dead to save Minas Tirith from Sauron’s army. When it came to their defense-in-depth strategy, the sum of the protective layers was much greater than what was offered by each individual component. Just like the Castle of Gondor, your cyber defense needs overlapping and redundant defenses.  If the attackers make enough noise, you may have time to get reinforcements in place.