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Microsoft Authenticator Flaw Let Permissionless Android Apps Steal Work Account Tokens

The Hacker News · info@thehackernews.com (The Hacker News)

Published by the source: Tue, 27 Oct 2026 17:39:50 +0530

From The Hacker News

Microsoft has fixed a flaw in its Authenticator app for Android that let a malicious app with no permissions pose as a trusted Microsoft app, such as Teams, and collect sign-in tokens for a victim's work account. Microsoft tracks the flaw as CVE-2026-80097 and fixed it in Authenticator for Android version 6.2606.4246, so anyone using the app should update. In the researchers' tests,

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