The Dichotomy Of Security

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If you have ever read Extreme Ownership or The Dichotomy of Leadership by Jocko Willink, then you will be familiar with the concept of dichotomy and how opposing forces of a skill set can compliment each other. Mastering both sides can allow flexibility and increase the effectiveness of that skill set when dynamically applied to a given situation. This is true in the security space, where fundamental opposing forces need to be balanced in order to manage risk and achieve success. Let’s take a look at a few examples.

Security Extremes

The easiest example of the dichotomy of security is to look at the extremes. Security professionals jokingly say the most secure company is one that is not connected to the internet. While this may be true, it will also prevent the company from conducting business effectively and so the company will cease to exist and security will no longer be needed.

On the other end of the spectrum there is the extreme of a business that has zero security and so there are no impediments to conducting business. While this may sound great to some, the reality is the company will be unable to effectively conduct business because of the real threats that exist on the internet. In the situation the company will also cease to exist because they will be hacked into oblivion.

It is obvious there is a dichotomy between no security and no connectivity and these forces need to be appropriately balanced for a security program to be effective, while allowing the business to operate.

Manual vs Automated Security

Another example of dichotomy is between manual security tasks and automation. While every CISO I know is striving to increase automation of security tasks, the reality is humans are still going to be needed in any security program for the foreseeable future.

Manual tasks are ideal for situations where humans need to demonstrate creativity, intuition or make complex decisions based on subtle context. Security functions like penetration testing, threat hunting, red teaming and offensive security require high amounts of skill and experience that automation, like AI, hasn’t been able to replicate. Additionally, soft skills such as reporting to the board, shifting culture, building alliances and making prioritization decisions are all extremely complex and unlikely candidates for automation. However, while manual activities benefit activities that require a high degree of creativity, they are inherently slow and can impede the normal flow of business.

Recently, the advances in automation and artificial intelligence have exponentially increased their usefulness. Automation is extremely useful for offloading repeatable tasks that lend themselves to being programmatically defined. For example, attack simulation products have made huge strides in offloading repetitive tasks of reconnaissance, enumeration, vulnerability assessment and remedial exploitation. We are seeing additional advances in automation related to incident response where events can be correlated and specific activities in an IR playbook can be completed to offload analysts and help focus their attention. AI has also helped to offload lower level operational activities like call centers and help desk inquiries.

While automation may accelerate parts of the business and offload humans from repeatable tasks, it does introduce complexity, which can be difficult to troubleshoot or can cause outright failures. Automation is also rigid because it is only as good as the parameters of the process it is following. This means it can’t think outside of the box or demonstrate creativity. There is also the risk of introducing bias into your processes if your underlying model is flawed.

As you can see manual security processes and automated security processes are opposing forces that need to be balanced based on the skill of your security team and the needs of the business.

The Human Problem

The last dichotomy I want to discuss is the human problem in security. Humans are necessary because of their creativity, diversity and capacity for adapting to an infinite number of situations. However, the flexibility in human nature also presents one of the fundamental security problems – how to you protect against human nature?

The reality is humans are flawed, but in a good way. Threat actors can try to take advantage of these flaws, whether they are logical (like firewall rules) or physical (like human psychology). Humans are essential to every aspect of a business and so we have to figure out how to protect them. The most difficult balance in security is developing a program that is comprehensive enough to protect against human nature without stifling it.

The Security Ideal

The ideal security program will recognize the dichotomy of the security challenges it faces and balance them accordingly. The ideal security program balances security with flexibility. We are seeing this balance manifest in mature security programs via concepts like security guard rails and the paved path. The paved path and guard rails attempt to allow a certain amount of latitude for acceptable behavior, while being rigid enough to protect users and the business accordingly.

Application In Other Domains

The concept of dichotomy is universal across any domain. In fact, this is an area of extensive research in disciplines like mathematics, computer science, military strategy, and economics. Specifically, in the space of network and graph theory there is a concept call max flow, min cut. These are counter principles that are opposite, yet complimentary. If you think of any network (road, supply chain, computer network, etc.) the point of maximum flow across that network is also the point where maximum disruption (minimum cut) can occur. From a military or security stand point you will want to protect the max flow/min cut, but from an attacker stand point, the max flow / min cut, is the area that will require the least amount of effort for maximum damage. Pretty neat!

Wrapping Up

An effective security program will balance the needs of security with the needs business with the ultimate goal of effectively managing risk. A critical skill for any security practitioner is to be flexible and adaptive. Specifically, by recognizing that security issues have two sides to them, security practitioners can demonstrate empathy towards the business and find an appropriate balance that can protect without impeding the business.

Author: Lee Vorthman

I'm the Chief Security Officer (CSO) at a public cloud company where I've built a successful security program from the ground up and have employed skills that can reduce the risk to any business by over 70 percent. I have over 25 years in the technology sector, am a Certified Chief Information Security Officer (C|CISO), CISSP and a U.S. Navy Veteran. Previously I was the Chief Technology Officer (CTO) for Civilian Agencies and Cybersecurity Initiatives at NetApp U.S. Public Sector. I am available for consulting and speaking opportunities. Thoughts and opinions are my own and do not represent any employer past or present. View all posts by Lee Vorthman