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WhatsApp Chat Histories Found Unencrypted on macOS and iOS Devices

First seen 25 May 2026, 13:02 UTC

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ThreatCluster AI
ThreatCluster May 26, 2026 at 12:36 UTC
  • WhatsApp chat histories are stored unencrypted on macOS and iOS devices.
  • The vulnerability allows access to chat data by other applications in the Apple ecosystem.
  • No patches or remediation steps have been reported as of now.

Security researchers from Mysk have discovered that WhatsApp chat histories are stored unencrypted on both macOS and iOS devices. This vulnerability allows other applications within the Apple ecosystem to access the plaintext message databases stored in shared app group containers. The issue raises significant concerns regarding local data protection and the potential for unauthorized access to sensitive user information. Users of WhatsApp on these platforms are affected, as their chat histories may be exposed to other apps developed by the same company. The current status indicates that this vulnerability is acknowledged but no patches or immediate remediation steps have been reported yet. The implications of this finding highlight the need for enhanced security measures in app data storage practices.

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Updated 121d ago How this analysis works

Timeline

2026-05-25
WhatsApp unencrypted storage vulnerability revealed
Researchers from Mysk disclosed that WhatsApp stores chat histories in plaintext on macOS and iOS, accessible by other apps.
Cybersecuritynews
2026-05-25
Concerns raised over data protection
The unencrypted storage of chat histories raises significant concerns regarding user data protection within the Apple ecosystem.
Gbhackers

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