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CISA tells agencies to perform "forensic triage" on Internet-exposed assets
Summary
CISA officials said BOD 26-04 requires agencies to triage Internet-exposed systems for signs of compromise rather than assume patching alone removes adversary access; officials said failure to check exposed devices has led to federal incidents.
Jay Gasly described a new expectation in BOD 26-04: agencies must conduct a "forensic triage" of devices that were Internet-exposed and associated with known-exploited vulnerabilities, focusing on checking logs and observable indicators rather than assuming a patch alone proves an environment is clean.
"One of the common misconceptions is that means you have to do a full forensic audit," Gasly said, adding that triage means to "look at the system" and check logs and indicators rather than immediately launching a full teardown. He said CISA has seen federal incidents where exposed devices remained unchecked and threat actors left simple, observable web shells.
Chris Day and the host agreed this aligns with an "assume breach" posture: agencies should treat exposure as evidence of possible compromise and verify with triage steps. Gasly recommended agencies define owner-level triage procedures so that checking exposed assets becomes routine during BOD-driven remediation.
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