Stop buying security tools: start buying a system

Security professionals often purchase new tools to address specific threats or compliance requirements. However, these tools may not integrate well with existing systems and can lead to additional complexity. This phenomenon, called "additive by default," results in security stacks that expand without a clear plan, becoming broader but not necessarily deeper.

Organizations need to define the security outcomes they aim to achieve before investing in new tools. Asset labeling is a common capability, yet it only answers what an asset is and does not address how it connects to other assets or how policies are enforced. Each tool addresses a specific issue but does not work together as a unified system.

A good exercise to evaluate the value of a security stack is to assess each tool against three questions: whether it validates continuously against a threat, whether it remains operationally relevant, and whether it is effective in the current environment. VLANs, for example, were effective in the past but have become less effective in today's dynamic environments.

Consolidating tools may reduce costs but does not necessarily solve the biggest problem, which is fragmented processes and differing objectives. The goal should be to have every control work together to form a continuous picture of identification, visibility, and enforcement, rather than reducing vendor numbers. When considering a new security purchase, assess how well it fits into the existing stack, not just its individual capabilities.