Require MFA for Externally‑Exposed Applications This article is part of our ongoing CIS IG1 series focused on practical, high‑impact security controls. In this section of the framework, identity takes center stage. Rather than focusing on new tools or complex architectures, CIS IG1 emphasizes a simple idea: access should always be verified, especially when systems are exposed to the internet. The CIS IG1 safeguards around identity begin at the most obvious boundary: externally‑exposed...














