Signal
APT28 hackers use Signal chats to launch new malware attacks on Ukraine
The Russian state-sponsored threat group APT28 is using Signal chats to target government targets in Ukraine with two previously undocumented malware families named BeardShell and SlimAgent. To be clear, this is not a security issue in Signal. Instead, threat actors are more commonly utilizing the messaging platform as part of their phishing attacks due to its […]
Signal now blocks Microsoft Recall screenshots on Windows 11
Signal has updated its Windows app to protect users’ privacy by blocking Microsoft’s AI-powered Recall feature from taking screenshots of their conversations. This new privacy feature, dubbed “screen security,” is now enabled by default on all Windows 11 devices, where Recall continuously takes screenshots of all active windows every few seconds and analyzes them to […]
Unofficial Signal app used by Trump officials investigates hack
TeleMessage, an Israeli company that sells an unofficial Signal message archiving tool used by some U.S. government officials, has suspended all services after reportedly being hacked. Smarsh, the parent company of TeleMessage, confirmed that all TeleMessage services have been suspended while it’s investigating what it described as “a potential security incident.” “TeleMessage is investigating a […]
Ukrainian military targeted in new Signal spear-phishing attacks
Ukraine’s Computer Emergency Response Team (CERT-UA) is warning about highly targeted attacks employing compromised Signal accounts to send malware to employees of defense industry firms and members of the country’s army forces. The bulletin mentions that the attacks started this month, with Signal messages containing archives posing as meeting reports. With some of these messages […]
Russian phishing campaigns exploit Signal’s device-linking feature
Russian threat actors have been launching phishing campaigns that exploit the legitimate “Linked Devices” feature in the Signal messaging app to gain unauthorized access to accounts of interest. Over the past year, researchers observed phishing operations attributed to Russian state-aligned groups that used multiple methods to trick targets into linking their Signal account to a […]
X now blocks Signal contact links, flags them as malicious
Social media platform X (formerly Twitter) is now blocking links to “Signal.me,” a URL used by the Signal encrypted messaging to share your account info with another person. According to GeekFeed’s tests and other users’ reports, attempting to post Signal.me links via public posts, direct messages, or profile bios receive error messages citing spam or […]
Signal will let you sync old messages when linking new devices
Signal is finally adding a new feature that allows users to synchronize their old message history from their primary iOS or Android devices to newly linked devices like desktops and iPads. The transfer process is fully end-to-end encrypted, ensuring privacy and data security. It will employ a QR code verification step to ensure the action […]
Cloudflare CDN flaw leaks user location data, even through secure chat apps
A security researcher discovered a flaw in Cloudflare’s content delivery network (CDN), which could expose a person’s general location by simply sending them an image on platforms like Signal and Discord. While the geo-locating capability of the attack is not precise enough for street-level tracking, it can provide enough data to infer what geographic region a […]
CISA urges switch to Signal-like encrypted messaging apps after telecom hacks
Today, CISA urged senior government and political officials to switch to end-to-end encrypted messaging apps like Signal following a wave of telecom breaches across dozens of countries, including eight carriers in the United States. CISA and the FBI confirmed these breaches in late October after reports that the Salt Typhoon, a Chinese-backed threat group, had hacked multiple U.S. […]
Signal introduces convenient “call links” for private group chats
The Signal messenger application has announced a set of new features aimed at making private group chats more convenient and easier for people to join. The highlight feature announced is “call links,” which allow users to create and share links with other Signal users without needing to create a group chat. The links can be […]