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

From today, @theguardian.com's new Secure Messaging system will generate dummy messages as 'air cover' for real messages sent by whistleblowers. This is to stop adversaries seeing that they're contacting journalists. The new system builds on security research carried out here: shorturl.at/Et0Rf

Blowing the whistle on wrongdoing has always taken bravery. Secure Messaging is an important new tool that will make it easier for people to share confidential information and tips with journalists at the Guardian. theguardian.com/securemessaging_launch

Since last summer I’ve been working with brilliant colleagues at the Guardian on an investigation into how two of the world’s biggest tourism companies, Airbnb and Booking.com, are helping Israeli settlers profit from stolen Palestinian land in the West Bank. www.theguardian.com/world/ng-int...

Seized, settled, let: how Airbnb and Booking.com help Israelis make money from stolen Palestinian land

As Israel deploys tanks in the West Bank for the first time in 20 years, we reveal how two of the world’s biggest travel companies are helping settlers commercialise stolen land

theguardian.com