The Guardian app’s own data flows make leaks indistinguishable from regular traffic — cutting off one of the easiest ways for a repressive government or a corporate boss to identify a leaker. www.niemanlab.org/2025/06/the-...

The Guardian’s new whistleblower tool buries leaks to journalists within its own readers’ everyday traffic

Think "I am Spartacus!" — but for leakers.

niemanlab.org

Uuuuh, using the news app as cover for an anonymous tip line makes so much sense!

Martin Kleppmann@martin.kleppmann.com · last yr.

Congratulations @lambda.bsky.social! Today @theguardian.com is launching a new way for whistleblowers to anonymously contact journalists, based on years-long research by Daniel and other colleagues. www.theguardian.com/gnm-press-of...

Congratulations @lambda.bsky.social! Today @theguardian.com is launching a new way for whistleblowers to anonymously contact journalists, based on years-long research by Daniel and other colleagues. www.theguardian.com/gnm-press-of...

The Guardian launches Secure Messaging, a world-first from a media organisation, in collaboration with the University of Cambridge

Secure Messaging is a new innovation for confidential story-sharing and source protection, underpinning the Guardian’s commitment to investigative journalism. The Guardian has published the open sourc...

theguardian.com

We launched CoverDrop 🎉 providing sources with a secure and anonymous way to talk to journalists. Having started five years ago as a PhD research project, this now ships within the Guardian app to millions of users—all of which provide cover traffic. Paper, code, and more info: www.coverdrop.org