Moving from WhatsApp to Signal: A good idea?

This week we learned that the US Government uses Signal for communication, after a journalist was accidentally added to a Signal chat. Accidental additions of people aside, the news has got regular folks asking if they should, too, be using Signal for private communications. Probably the largest...

End-to-End Encrypted Texts Between Android and iPhone Are Coming

Plus: A nominee to lead CISA emerges, Elon Musk visits the NSA, a renowned crypto cracking firm’s secret and problematic cofounder is revealed, and more...

GSMA Confirms End-to-End Encryption for RCS, Enabling Secure Cross-Platform Messaging

The GSM Association GSMA has formally announced support for end-to-end encryption E2EE for securing messages sent via the Rich Communications Services RCS protocol, bringing much-needed security protections to cross-platform messages shared between Android and iOS platforms. To that end, the new...

A New Era of Attacks on Encryption Is Starting to Heat Up

The UK, France, Sweden, and EU have made fresh attacks on end-to-end encryption. Some of the attacks are more “crude” than those in recent years, experts say...

Android happy to check your nudes before you forward them

Sometimes the updates we install to keep our devices safe do a little bit more than we might suspect at first glance. Take the October 2024 Android Security Bulletin. It included a new service called Android System SafetyCore. If you can find a mention of that in the security bulletin, you’re a...

CVE-2025-24904

libsignal-service-rs is a Rust version of the libsignal-service-java library which implements the core functionality to communicate with Signal servers. Prior to commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, plaintext content envelopes could be injected by a server or a malicious client, and m...

CVE-2025-24904 libsignal-service-rs doesn't sanity check plaintext envelopes are not sanity-checked

libsignal-service-rs is a Rust version of the libsignal-service-java library which implements the core functionality to communicate with Signal servers. Prior to commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, plaintext content envelopes could be injected by a server or a malicious client, and m...

CVE-2025-24904

CVE-2025-24904 affects libsignal-service-rs, a Rust port of libsignal-service-java. Before commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, plaintext content envelopes could be injected by a server or malicious client, potentially bypassing end-to-end encryption and authentication. The fix is in ...

CVE-2025-24904 libsignal-service-rs doesn't sanity check plaintext envelopes are not sanity-checked

libsignal-service-rs is a Rust version of the libsignal-service-java library which implements the core functionality to communicate with Signal servers. Prior to commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, plaintext content envelopes could be injected by a server or a malicious client, and m...

CVE-2025-24904 libsignal-service-rs doesn't sanity check plaintext envelopes are not sanity-checked

libsignal-service-rs is a Rust version of the libsignal-service-java library which implements the core functionality to communicate with Signal servers. Prior to commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, plaintext content envelopes could be injected by a server or a malicious client, and m...

CVE-2024-42347

matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. A malicious homeserver could manipulate a user's account data to cause the client to enable URL previews in end-to-end encrypted rooms, in which case any URLs in encrypted messages would be sent to the...

WhatsApp says Paragon is spying on specific users

WhatsApp has accused the professional spyware company Paragon of spying on a select group of users. WhatsApp, the Meta-owned, end-to-end encrypted messaging platform, said it has reliable information that nearly 100 journalists and other “members of civil society” were targets of a spyware campai...

Hackers Likely Stole FBI Call Logs From AT&T That Could Compromise Informants

A breach of AT&T that exposed “nearly all” of the company’s customers may have included records related to confidential FBI sources, potentially explaining the bureau’s new embrace of end-to-end encryption...

The new rules for AI and encrypted messaging, with Mallory Knodel (Lock and Code S06E01)

This week on the Lock and Code podcast … The era of artificial intelligence everything is here, and with it, come everyday surprises into exactly where the next AI tools might pop up. There are major corporations pushing customer support functions onto AI chatbots, Big Tech platforms offering AI...

CISA Releases Best Practice Guidance for Mobile Communications

Today, CISA released Mobile Communications Best Practice Guidance. The guidance was crafted in response to identified cyber espionage activity by People’s Republic of China PRC government-affiliated threat actors targeting commercial telecommunications infrastructure, specifically addressing...

CVE-2024-52510 Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Deskt...

Discord Introduces DAVE Protocol for End-to-End Encryption in Audio and Video Calls

Popular social messaging platform Discord has announced that it's rolling out a new custom end-to-end encrypted E2EE protocol to secure audio and video calls. The protocol has been dubbed DAVE, short for Discord's audio and video end-to-end encryption "E2EE A/V". As part of the change introduced...

Chrome Users Can Now Sync Passkeys Across Devices with New Google PIN Feature

Google on Thursday unveiled a Password Manager PIN to let Chrome web users sync their passkeys across Windows, macOS, Linux, ChromeOS, and Android devices. "This PIN adds an additional layer of security to ensure your passkeys are end-to-end encrypted and can't be accessed by anyone, not even...

GSMA Plans End-to-End Encryption for Cross-Platform RCS Messaging

The GSM Association GSMA, the governing body that oversees the development of the Rich Communications Services RCS protocol, on Tuesday, said it's working towards implementing end-to-end encryption E2EE to secure messages sent between the Android and iOS ecosystems. "The next major milestone is f...

What the arrest of Telegram’s CEO means, with Eva Galperin (Lock and Code S05E19)

This week on the Lock and Code podcast… On August 24, at an airport just outside of Paris, a man named Pavel Durov was detained for questioning by French investigators. Just days later, the same man was charged in crimes related to the distribution of child pornography and illicit transactions,...