Signal

Pierluigi Paganini March 16, 2026
Former Germany’s foreign intelligence VP hit in Signal account takeover campaign

Former BND VP Arndt Freytag von Loringhoven was targeted in a Signal cyberattack, part of a wave hitting officials and politicians in Germany. A cyberattack targeting Signal and WhatsApp users has hit high-ranking German officials, including former BND Vice President Arndt Freytag von Loringhoven. The official reported being contacted by someone posing as Signal support […]

Pierluigi Paganini March 09, 2026
Russia-linked hackers target Signal, WhatsApp of officials globally

Russia-linked hackers are targeting Signal and WhatsApp accounts of government and military officials worldwide, warns Dutch intelligence. Dutch intelligence agencies (MIVD and AIVD) warn of a global campaign by Russia-linked threat actors aiming to compromise Signal and WhatsApp accounts. The operation targets government officials, civil servants, and military personnel, highlighting growing cyber risks to sensitive […]

Pierluigi Paganini November 25, 2025
CISA: Spyware and RATs used to target WhatsApp and Signal Users

CISA warns that threat actors are actively using commercial spyware and RATs to target users of mobile messaging apps WhatsApp and Signal. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning of threat actors using commercial spyware and remote access trojans (RATs) to target users of popular instant messaging applications, including WhatsApp and Signal. […]

Pierluigi Paganini October 03, 2025
ProSpy, ToSpy malware pose as Signal and ToTok to steal data in UAE

Researchers uncovered two Android spyware campaigns, ProSpy and ToSpy, posing as Signal and ToTok in the UAE to steal data via fake sites. ESET cybersecurity researchers uncovered two spyware campaigns, dubbed ProSpy and ToSpy, that target Android users in the United Arab Emirates (U.A.E.) by impersonating apps like Signal and ToTok. The cybersecurity firm tracks the campaigns separately due […]

Pierluigi Paganini May 22, 2025
New Signal update stops Windows from capturing user chats

Signal implements new screen security on Windows 11, blocking screenshots by default to protect user privacy from Microsoft’s Recall feature. A Signal update for the Windows app prevents the system from capturing screenshots by default. The feature protects users’ privacy from Microsoft’s Recall feature. “Signal Desktop now includes support for a new “Screen security” setting […]

Pierluigi Paganini May 05, 2025
A hacker stole data from TeleMessage, the firm that sells modified versions of Signal to the U.S. gov

A hacker stole data from TeleMessage, exposing messages from its modified Signal, WhatsApp, and other apps sold to the U.S. government. A hacker stole customer data from TeleMessage, an Israeli firm selling modified versions of popular messaging apps, such as Signal and WhatsApp, to the U.S. government. “The data stolen by the hacker contains the […]

Pierluigi Paganini February 19, 2025
Russia-linked APTs target Signal messenger

Russia-linked threat actors exploit Signal ‘s “linked devices” feature to hijack accounts, per Google Threat Intelligence Group. Google Threat Intelligence Group (GTIG) researchers warn of multiple Russia-linked threat actors targeting Signal Messenger accounts used by individuals of interest to Russian intelligence. The experts speculate that the tactics, techniques, and procedures used to target Signal will […]

Pierluigi Paganini August 30, 2023
Chinese GREF APT distributes spyware via trojanized Signal and Telegram apps on Google Play and Samsung Galaxy stores

China-linked APT group GREF is behind a malware campaign distributing spyware via trojanized Signal and Telegram apps on Google Play ESET researchers uncovered a cyberespionage campaign carried out by the China-linked APT group known as GREF that is distributing spyware via trojanized Signal and Telegram apps on Google Play and Samsung Galaxy stores. The malware […]

Pierluigi Paganini August 16, 2022
Phone numbers of 1,900 Signal users exposed as a result of Twilio security breach

For about 1,900 users, Twilio hackers could have attempted to re-register their number to another device or learned that their number was registered to Signal. Communication company Twilio provides Signal with phone number verification services, and recent security breach it has suffered had also impacted some users of the popular instant-messaging app. Twilio hackers could […]

Pierluigi Paganini December 01, 2021
FBI training document shows lawful access to multiple encrypted messaging apps

Which are the most secure encrypted messaging apps? An FBI document shows what data can be obtained from them. The Record shared an FBI training document that reveals the surveillance capabilities of the US law enforcement detailing which data can be extracted from encrypted messaging apps. The document analyzes lawful access to multiple encrypted messaging […]