Unverified50% confidenceFactExact time
A canary token is a decoy marker used to detect data leakage, typically a unique string that looks sensitive but is actually useless, placed in forged secret files or data stores; when an attacker steals and transmits it externally, it triggers a monitoring system alert.
1
Sources
50%
Confidence
Long-term
Relevance
10/25/2026
First Seen
Sources
How a Calculator Tool Leaked an AI Agent's Secret
youtubeHackersteinAI10/25/2026
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