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3 sources verified·1 min read
By Lyrie Threat Intelligence·4/7/2026

Russia Hacked Routers to Steal Microsoft Office Tokens

Source: Krebs on Security

Published: Tue, 07 Apr 2026 17:02:44 +0000

Summary

Hackers linked to Russia's military intelligence units are using known flaws in older Internet routers to mass harvest authentication tokens from Microsoft Office users, security experts warned today. The spying campaign allowed state-backed Russian hackers to quietly siphon authentication tokens from users on more than 18,000 networks without deploying any malicious software or code.

Sources

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#breach#krebs-on-security

Validated sources

  1. [1]Krebs on Security
  2. [2]Krebs on Security feed
  3. [3]Lyrie threat desk