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This signal relates to AI usage, assistants, models or data handled by these systems. It should be read through a governance lens: which data enters the tool, which access is granted and which traces remain auditable.
Cybersecurity watch
Microsoft 365 Token-Replay Attacks Compromise 97 Accounts at 79 Organizations
Why it matters
This page references a cybersecurity signal published by The Hacker News. It helps CISOs, DPOs, IT leaders, infrastructure teams, SMBs and enterprise accounts track vulnerabilities, alerts and trends that may affect security, compliance or system resilience.
Watch points
- Sensitive data sent to AI tools
- Connectors, permissions and access logs
- Internal rules for assistants, agents and local LLMs
Recommended action
Review handled data, connectors and available logs before authorizing or expanding the AI usage concerned.
Relevant for
DPOs, CISOs, IT leaders, innovation teams, exposed business units and AI compliance owners.
Source summary
Cybersecurity researchers have disclosed a Microsoft 365 campaign that has been observed leveraging an adversary-in-the-middle (AitM) relay to capture sign-in sessions and then replay the stolen tokens to break into email accounts at 79 organizations. Huntress, which observed the activity between July 14 and September 22, 2026, said it detected 497...
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