Myth #1: Security success depends on the level of control you have over your environment.

The Reality: It’s not about implementing more stringent controls. What’s more important is having better visibility into your organization’s data. The primary point of risk is anywhere data is in its motion. Just having controls everywhere is insufficient. If your controls fail, chances are you won’t even notice. Most organizations victimized by data breaches are discovered by a third party. 

My Advice: The shorthand advice here is: “Focus on data visibility, not the controls.” Controls can’t be effective without real visibility on data movement. This is the primary focal point for any successful security regime. With better visibility into what is happening to the data, the controls you develop will be more intelligent.

Myth #2: Effective data protection must start with a lengthy and complex data discovery and classification process.

The Reality: Data discovery and classification are important, but be practical. It’s disabling to your efforts to march step-by-step in a linear quest to attain the perfect schema. Discovery and classification are ongoing processes that are never complete. Continue to rely on them for mid-course corrections.

My Advice: Start with building a baseline set of protections based on data context. There are fewer kinds of context than there are types of data. Start with the assumption that breaches are inevitable and base your contextual hierarchy on where the critical IP resides. Focus on blocking or blunting the effect of an attacker’s potential malicious activities, which is most likely a small and reasonable number of potential actions. Combining context awareness with transfer visibility makes your data protection schema more scalable.

Myth #3: The goal of cybersecurity is to keep the bad guys out.

The Reality: In today’s interconnected world, what do “in” and “out” even mean anymore? Any external attacker who steals the credentials, authority and access rights of an insider can be considered “in.” Anyone who has access rights is a potential threat, including employees behaving badly.

My Advice: Designing data protection regimes around the “insider threat” by default also controls for an outsider posing as an insider. The outsider attack problem is solved as a side effect. The goal of this inside-out approach is to egress control: to keep the data from leaving. Don’t allow data movement in outbound network traffic go unnoticed.

Myth #4: Data surveillance means breaking employee trust and invading employee privacy.

The Reality: Surveillance doesn’t have to be an attack on employees’ privacy rights. It’s not about reading every email. Reading every email may identify single security incidents, but it won’t reveal the more powerful insight: patterns of data movement and their context.

My Advice: The proper level of acceptable surveillance is a matter of debate inside each individual organization. Event data can be collected without examining actual file contents. It can be anonymized yet descriptive of the types of users, files, repositories and applications involved. Defining responses based on context will help prioritize your surveillance efforts.

Myth #5: If you can secure your own environment, your data is safe.

The Reality: Any third party who can see your data is a potential risk, even though they have access rights. Any determined attacker knows how to work the data supply chain progressively from tertiary targets up to secondary and ultimately primary targets.

My Advice: A complex data supply chain calls for a collaborative approach between partners, suppliers and other stakeholders. Reach out to your peers at these organizations. Use a common language when discussing protection of your data. Try to run the same technology – that’s a consistent control. If you can, mandate adoption of security practices.

Final Thought

Security regimes age, while data’s value as a percentage of corporate valuation is only rising. As cryptographer, computer science and security expert Bruce Schneier so eloquently said, “complexity is the worst enemy of security.” Simplify by focusing on data, not individuals or networks. Pursuing data-centric data protection puts you in a better position to weather the withering rate of change in our industry.