WhatsApp patches vulnerability exploited in zero-day attacks
WhatsApp has patched a security vulnerability in its iOS and macOS messaging clients that was exploited in targeted zero-day attacks. The company says this zero-click flaw (tracked as CVE-2025-55177) affects WhatsApp for iOS prior to version 2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78. "Incomplete authorization of linked device synchronization messages in WhatsApp [..] could have allowed an unrelated user to trigger processing of content from an arbitrar