Russian Hackers Target Signal and WhatsApp: How to Secure Your Private Chats.

Global Cyberattack on Messaging Apps

According to TSN.ua: Hackers linked to Russia are conducting a global cyberattack targeting accounts on the Signal and WhatsApp messaging platforms. The goal is to gain access to the private messages of high-ranking officials, military personnel, and journalists. Dutch intelligence services, specifically the AIVD and MIVD, have confirmed this campaign, noting that the attackers are using phishing schemes by impersonating Signal support staff. It is crucial to remember that Signal does not employ any support chatbots, a fact that highlights the risk for unsuspecting users. These attacks underscore the persistent threat state-sponsored actors pose to digital privacy, even on encrypted platforms.

Vulnerabilities and Security Advice

The hackers are exploiting a vulnerable feature known as 'linked devices,' which allows for the remote reading of message history and can significantly compromise personal data security. The Director of the Dutch Military Intelligence Service, Pieter Rissink, emphasized that

“messaging apps like Signal and WhatsApp, despite their end-to-end encryption, should not be used for transmitting secret or critically important data.”

This statement points to the necessity of maintaining strict security protocols when using such services for sensitive communication.

Furthermore, access to Signal and WhatsApp in Russia has been increasingly restricted since 2024, and in 2025, Russia demonstrated record levels of activity in cyberspace. These factors indicate that threats from cybercriminals remain highly relevant, and users must stay vigilant against potential phishing attempts and exercise caution when choosing platforms to exchange sensitive information. The situation highlights the critical importance of information security in an era of global digital threats. Using messengers for confidential data requires heightened awareness, as malicious actors continually refine their attack methods. Users should remain cautious and adhere to expert recommendations for online safety to avoid falling victim to cybercriminal traps.