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Signal

0 mentions in 7 days · 1 in 30 days · 2 total · first seen Aug 12, 2026 · last 19d ago

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Russian Hackers Phish EU Officials Over Messaging Apps

Russian nation-state hackers are phishing EU officials via Signal and WhatsApp as espionage shifts from email to messaging apps.

Russian state-linked threat groups have shifted phishing operations away from email toward messaging apps such as Signal and WhatsApp, targeting EU officials. In response, EU governments are trying to move away from popular messaging platforms. The report highlights evolving social engineering tactics in nation-state espionage campaigns against government targets.

Dark ReadingAug 27, 11:16 UTC · 19d agoThreat actor

Signal's new security feature checks if your encrypted chats were tampered with

Signal adds automatic key verification, a key-transparency system audited by Cloudflare and Trail of Bits that detects key-directory tampering in E2EE chats.

Signal launched automatic key verification, a key-transparency system that confirms a phone number or username remains bound to a consistent encryption key across Signal's key directory. Cloudflare and Trail of Bits independently audit the system, with cryptographic protection preventing auditors from seeing users' identifiers in plaintext. The feature mitigates key substitution by a compromised directory or privileged insider, though it currently requires the contact's phone number and users can fall back to manual Safety Number verification.

Help Net SecurityAug 12, 00:00 UTC · Aug 12, 2026Tools

Appears with

threat actor Russian state-linked threat actors 1 organization Cloudflare 1 organization European Union 1 organization Signal 1 organization Trail of Bits 1 product WhatsApp 1 vendor Cloudflare 1 vendor Signal 1 vendor Trail of Bits 1 victim EU officials 1

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