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Accueil > Vidéos et podcasts > Podcasts

The smoking gun of techno-capitalism (ft. Meredith Whittaker)

This Machine Kills · 281. The Smoking Gun of Techno-Capitalism (ft. Meredith Whittaker)

The smoking gun of techno-capitalism (ft. Meredith Whittaker)

Podcast with Signal president Meredith Whittaker on the logics of control with the industrial design of computation and the political economy of “open” AI.

This Machine Kills Podcast – Source

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Signal’s Meredith Whittaker on AI hype and the end of privacy

Signal’s Meredith Whittaker on AI hype and the end of privacy

In POLITICO Tech, host Steven Overly speaks with Whittaker about the future of Big Tech, the privacy risks of an AI-driven world, and how Silicon Valley is influencing politics. POLITICO Tech - Recorded in October 2025. Source Share video with...

BIG INTV: Signal’s Meredith Whittaker says AI is just a branding term

BIG INTV: Signal’s Meredith Whittaker says AI is just a branding term

Katie Drummond talks to Signal's Meredith Whittaker about the aftermath of SignalGate, the trajectory of artificial intelligence, and the tech industry’s current relationship with politics. Uncanny Valley - Recorded in September 2025 Source Share video with...

Meredith Whittaker on Signal, surveillance and the future of AI

Meredith Whittaker on Signal, surveillance and the future of AI

Together with Evelyn Austin from Bits of Freedom, Meredith Whittaker explores how today’s tech infrastructures influence our lives, the pressing need for oversight in AI deployment, and what’s required to create digital tools that genuinely serve the public interest....

Signal on how they became the global symbol of digital privacy

Signal on how they became the global symbol of digital privacy

Podcast interview with Udbhav Tiwari, VP of Strategy and Global Affairs at Signal, on his role at Signal, the mission of Signal and future challenges. TP:Talks Podcast - Source Share video with friends:

Dernières nouvelles.

Signal Android update: pinned messages are getting closer

Signal Android update: pinned messages are getting closer

The foundation for pinned messages in Signal has been laid.

Received a message from Signal? Here’s how to recognize Signal’s official and only chat

Received a message from Signal? Here’s how to recognize Signal’s official and only chat

Signal uses the Release Note Channel to announce new features.

Signal dévoile le design Liquid Glass pour iPhone sur iOS 26.

Signal dévoile le design Liquid Glass pour iPhone sur iOS 26.

Signal bénéficie d’une refonte complète pour iOS 26 et iPadOS 26.

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Il s’agit d’un site indépendant et non officiel consacré à Signal. Toutes les marques, contenus intégrés et éléments tiers restent la propriété de leurs détenteurs respectifs. Nous ne revendiquons aucun droit sur ces contenus. Contactez-nous si vous avez des questions ou des préoccupations.

Username Privacy
  • Unlike other messaging apps, Signal cannot easily see or produce the usernames of given accounts.
  • Usernames in Signal are protected using a custom Ristretto 25519 hashing algorithm and zero-knowledge proofs.
Link Previews and Privacy
  • Some messaging apps handle link previews in a highly insecure manner.
  • Instead of generating the link preview locally on the user’s own device, these apps choose to send links to a hosted service and generate the link preview remotely instead.
  • This puts the remote link preview service in a position where it can see and potentially monitor which links people are sharing, who is sharing them, and when they were shared.
Telegram Link Previews
  • Link Previews in Telegram are always generated remotely on Telegram’s servers.
  • Telegram provides an option to completely disable Link Previews in Secret Chats. If this setting isn’t disabled, even URLs and websites that are exchanged in end-to-end encrypted chats are leaked to Telegram’s servers.
    • iOS: Telegram Settings > Privacy and Security > Data Settings > Link Previews
    • Android: Telegram Settings > Privacy and Security > Link Previews
WhatsApp Multi-Device Support
  • WhatsApp Desktop is available for macOS and Windows.
  • WhatsApp Web can run in the web browser on other platforms.
    • The WhatsApp Code Verify web browser extension must be installed in order to mitigate possible man-in-the-middle attacks.
Telegram Multi-Device Support
  • Only “Cloud Chats” (which are not end-to-end encrypted) remain in sync across mobile and desktop.
  • Telegram Secret Chats are not synchronized across devices.
Telegram Reactions
  • Reactions are completely disabled in Telegram’s optional end-to-end encrypted Secret Chats.
Telegram Voice Notes
  • Voice notes outside of Secret Chats are not end-to-end encrypted.
  • Telegram Premium users can access a Voice-to-Text Conversion feature.
    • These transcriptions are generated remotely (and therefore insecurely) on Telegram’s servers using their voice message transcription API.
Telegram Call Verification
  • Telegram users need to look at a “key visualization” and manually verify four emoji characters at the beginning of every call.
    • If this step is ever skipped, that conversation is at risk of being intercepted by a man-in-the-middle attack.
  • One-on-one video calls in Telegram have only been end-to-end encrypted since August 2020.
Google Messages Multi-Device Support
  • Messages for Web can relay messages between a phone and a web browser.
    • No browser extension is available to verify the evaluated code, so man-in-the-middle attacks are a possibility.
    • Messages for Web supports legacy message formats (e.g. SMS and MMS) that are not end-to-end encrypted.
  • No desktop apps are available.
Google Messages and Calling
  • Google Messages doesn’t include support for voice and video calls.
  • Google Meet is a separate application that can optionally be installed on the same phone.
    • End-to-end encryption for voice and video calls can be enabled in Google Meet under certain conditions.
Google Messages End-to-end Encryption
  • End-to-end encryption is only enabled for Rich Communication Services (RCS) chats, and only if everyone in the conversation is also using the Google Messages app.
    • End-to-end encryption is not enabled when exchanging messages with other RCS apps (e.g. Samsung Messages).
  • Legacy message formats like SMS and MMS are not end-to-end encrypted.
Apple Messages End-to-end Encryption
  • End-to-end encryption is only enabled by default for iMessage (blue bubbles).
  • Legacy message formats like SMS and MMS (green bubbles) are not end-to-end encrypted.
  • Apple can also access end-to-end encrypted chats and reveal message contents to external parties under some circumstances.
    • To prevent this, every participant in the conversation must either enable Advanced Data Protection for iCloud or completely turn off iCloud backups on all of their devices.
    • More information is available in Apple’s iCloud data security overview.
Signal Group Permissions

In addition to other group attributes that are end-to-end encrypted (such as group names, group descriptions, and group avatars), the Signal service also doesn’t have access to any information about which accounts are part of a group, which accounts are admins in a group, which accounts can add new people to a group, which accounts can approve requests to join a group, or which accounts can send messages in a group.