In Buddhist philosophy I often hear the expression “No Mud, No Lotus” this expression aligns with the Buddhist view that life and existence in many ways are circular. Things that are negative can actually be used for our benefit, and things that are good when overused can harm us. Life is a duality.
I've been thinking about how organizations are transformed by negative events, specifically security breaches or incidents. These unfortunate events which are caused by evildoers with malicious intent usually have some unintended consequences. Those unintended consequences are, hopefully, that the affected organization's cybersecurity posture will significantly improve as a result of the breach. Unfortunately, sometimes the evildoer's intended purpose, financial loss, or monetary gain is also the outcome.
In the case of improvements in cybersecurity after a breach, this improvement is not without much pain and suffering on the part of the incident responders who work countless hours, the customers of the organization who lose their data, or their identities, and the IT staff who have to rebuild after much is destroyed.
Often times out of the ashes of a significant breach, a more defensible organization with a more realistic view of the cost of failure is born. CISOs, executives, and board members who have never before been leaders in an organization that has been hit by a massive incident now understand that security is truly everyone's responsibility. These lessons, in the case of a breach, are learned the hard way. “The hard way” is certainly a way but it's not always the best way, and it's a way I would like people to avoid if at all possible.
Returning back to Buddhist philosophy there is also the concept of the “middle way.” Applying that concept to cybersecurity informs us that it may be possible to significantly improve security without the pain of a significant breach. What would that look like? Well, from my perspective the middle way does still have an adversary, just not one that wants to cause you actual monetary or other harm. Many cybersecurity thinkers have quoted the art of war by Sun Tzu, a 6th-century BCE military strategist. I will spare you recitations of those concepts. Rather, in keeping with Buddhist inspiration I will explore a few concepts from “The Book of Five Rings” by Miyamoto Musashi. Miyamoto was an incredibly skilled Japanese swordsman, philosopher, strategist, writer, and rōnin. (I bet you thought your LinkedIn profile was impressive!) Miyamoto was also a Buddhist, not necessarily in the peace-loving modern sense, this was feudal Japan and Miyamoto killed a lot of people… but I digress… how can his strategies and philosophies help defend the modern enterprise?
Taking inspiration from The Book of Five Rings here are a few quotes to ponder.
“The important thing in strategy is to suppress the enemy’s useful actions but allow his useless actions”
Here are the factors to consider:
When an adversary gains a foothold in an environment we need to ensure that they are not able to take any useful actions without being detected and blocked. There are however a number of useless actions that we can allow them to take on the system, this allows them to waste their time on a system, and increase the likelihood that they will be detected as soon as they attempt a useful action. Using a tool to automatically evaluate your EDR frameworks detective capability comes to mind. A tool like MITRE’s caldera framework can launch a battery of tests on an endpoint. You can then evaluate which actions your EDR solution can detect, which it cannot detect, which undetected actions should be prioritized, and which ones can safely be ignored. If you do this you will be implementing Miyamoto's strategy of suppressing the enemy's useful actions.
“You can only fight the way you practice”
After running countless purple team engagements, red team exercises, and penetration tests over my career there has not been a single time that all teams did not collectively walk away with something to improve on or focus on for the next time. If you are not practicing how to defend your environment from an adversary on a regular basis how can you expect to fight one off in a real-world breach?
There are so many other insightful quotes in the Book of Five Rings but I will leave you with one final gem.
“In strategy, it is important to see distant things as if they were close and to take a distanced view of close things.”
This one should hit home for all security people, there is a constant flood of small tasks, alerts, things to do, and people to help. Those are close things, consider the urgency of someone reporting a phishing email. Yes, it is possibly a phishing email, but what if you were to wait to respond for 30 minutes and plan out an incident tabletop? The distant things (a breach) need to be examined closely, what are you doing to prepare for that eventuality?
okay okay, last one:
“You must understand that there is more than one path to the top of the mountain”
There is no one right way to secure an organization, and there are also many wrong ways. Many organizations choose a variety of paths to improved security, some build out their own adversary emulation teams, and others bring in an outside party, some keep their systems disconnected from the internet entirely. If you’d like to discuss what may work for your organization you can reach me at chris [at] adversaryacademy.com