Research · 10h ago
CISA published guidance on using cyber decoys to strengthen detection and response, aiming at critical infrastructure teams that need better visibility without heavy staffing or budget. The advisory says decoys can help spot intruders who already have valid access and are using legitimate credentials or native tools.
The idea is to plant accounts, files, or systems that should never be touched; if someone does touch them, the alert is high-confidence because normal activity should not hit those bait items. CISA ties the approach to tripwires, breadcrumbs, and honeytokens, and frames it as a practical way to catch post-compromise discovery, lateral movement, and data access that routine blocking may miss.
For teams already leaning on Zero Trust and identity logs, the point is not a new control so much as a cheaper signal layer. Where defenders cannot watch everything continuously, decoys can make quiet intrusions noisy without changing the attacker’s need to get in first.
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CISA promotes a fresh way to deter cyberattackers: Lie to them
CISA issued new guidance advising critical infrastructure operators on using cyber decoys and honeytokens to cheaply detect and distract network intruders.
Using Cyber Decoys to Strengthen Detection and Response | CISA
This guidance helps defensive teams at varying levels of cybersecurity maturity incorporate decoy capabilities into their cyber defense planning to detect and distract adversaries, collect cyber threat intelligence, and respond early in the intrusion lifecycle.
Part of the PlainSec briefing for 2026-09-17