The Seam In Cybersecurity Defenses That Nation-States Keep Exploiting
Security Boulevard, Friday, February 27th, 2026
There is a gap in enterprise security that the industry has been talking around for years without naming it directly. It sits between two disciplines that most organizations treat as separate: Vulnerability management and detection and response.
Vulnerability management asks what is known to be broken? Detection and response asks what is known to be malicious? Between those two questions is a seam where sophisticated adversaries can operate for months without being seen.
The Notepad++ supply chain compromise, disclosed in early February 2026, is the latest example. But it is not the first, and it will not be the last. SolarWinds lived in that same seam for 14 months. The 3CX breach exploited it. So did Codecov.