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Microsoft Edge is keeping your passwords in plaintext memory: Here’s what that actually means

ID: eb0f161d-df3f-5311-9327-dad6d63fb844

STIX ID: report--eb0f161d-df3f-5311-9327-dad6d63fb844

Feed Name: ThreatLocker Blog

Threat Score
75/100

Date Published: 2026-05-06

Date Updated: 2026-05-06

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### Executive summary: The report describes a disclosure showing Microsoft Edge loads all saved passwords into plaintext process memory at browser startup, creating a persistent extraction surface that infostealer malware or any process with user-session memory-read access (including an elevated admin on terminal servers) can harvest; mitigations recommended include avoiding Edge's built-in manager, using standalone password managers, deny-by-default allowlisting, and restricting execution and administrative privileges.

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