Russian Hackers Target High-Value Assets via Signal App
Commercial Messaging Apps Under Siege: Russian Hackers Target High-Value Targets Through Signal
The US Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA) have issued a joint warning regarding a sophisticated hacking campaign targeting commercial messaging platforms, with Signal being a primary focus.
Thousands of Accounts Compromised
Instead of directly targeting the applications or their encryption, hackers employ phishing tactics to gain access to user accounts.
Hackers’ Tactics
Security authorities in the Netherlands and Germany were among the first to identify attempts against Signal and other messaging platforms. The scheme centers on Signal’s “linked devices” feature, where attackers contact targets while posing as trusted entities, including support teams or known contacts.
User Caution Advised
The FBI and CISA urge users of commercial messaging applications to remain vigilant for phishing activity and follow basic cyber hygiene practices.
- Be cautious when receiving unexpected messages or requests
- Monitor for phishing activity
- Follow best practices for securing sensitive information
The FBI and CISA emphasize that encryption remains effective in protecting sensitive information, but phishing continues to be a significant threat.