What It Is
The CIS Critical Security Controls, usually shortened to CIS Controls, is a prioritized set of specific, actionable technical safeguards published by the Center for Internet Security. Unlike a higher-level framework, it is designed to be implemented directly rather than interpreted first.
Why It Exists
A framework like NIST CSF answers “how should we organize our thinking about risk,” but it doesn’t tell a smaller organization with limited resources exactly what to actually go implement first, this week, with the budget it actually has. CIS Controls exists to answer that more concrete question: what do we do, and in what order.
How It Works
The controls are organized as a prioritized list of specific safeguards, covering areas such as maintaining an accurate inventory of hardware and software, managing access control, running continuous vulnerability management, and delivering security awareness training, among others. They are commonly grouped into Implementation Groups representing increasing levels of resourcing and maturity: a small organization targets a smaller, foundational set of controls first, while a larger or higher-risk organization works through a broader set. As with any framework on this page, confirm the exact current control list and grouping against CIS’s own published materials rather than treating any single description as permanently fixed.
The contrast with NIST CSF is worth stating directly: CIS Controls tells you specifically what to implement, while CSF tells you how to think about and organize the fact that you’re implementing things. Many organizations use both together: CSF for structure and executive communication, CIS Controls for the actual technical to-do list.
Where This Shows Up in Practice
Smaller and mid-sized organizations without the resources to build a fully custom security program from scratch use CIS Controls as a credible, ready-made starting technical baseline. It also shows up regularly in vendor risk assessments and cyber-insurance underwriting questionnaires, where an underwriter wants a concrete answer to “which specific safeguards do you actually have in place,” not just a maturity narrative.
Why a Business Should Care
For a client asking “where do we even start,” CIS Controls is a genuinely practical, prioritized answer grounded in real-world attack patterns rather than an abstract ideal. That makes it easier to have a realistic, resourced conversation about what to do first versus what to defer, instead of trying to explain every possible control at once with no sense of sequence.
Common Misconceptions
“CIS Controls and NIST CSF are competing, pick one.” They aren’t competitors. As described above, they serve different, complementary purposes, and using both together is common and sensible.
“Implementing CIS Controls is a one-time project.” It isn’t, and treating it that way is a common, costly mistake. Like everything else on this site, security control implementation is a maintained program: new assets appear, configurations drift, and a control implemented once needs ongoing verification, not a single checklist that gets closed out and forgotten.
Related Topics
- Security Frameworks & Standards: how CIS Controls fits among the other named frameworks covered on this site.
- The NIST Cybersecurity Framework: the higher-level counterpart many organizations pair with this more prescriptive control list.