Overview
SecureDrop is a free software platform for secure communication between journalists and sources (whistleblowers). It was originally designed and developed by Aaron Swartz and Kevin Poulsen under the name DeadDrop. James Dolan also co-created the software.
History
After Aaron Swartz's death, the first instance of the platform was launched under the name Strongbox by staff at The New Yorker on 15 May 2013. The Freedom of the Press Foundation took over development of DeadDrop under the name SecureDrop, and has since assisted with its installation at several news organizations, including ProPublica, The Guardian, The Intercept, and The Washington Post.
Security
SecureDrop uses the anonymity network Tor to facilitate communication between whistleblowers, journalists, and news organizations. SecureDrop sites are therefore only accessible as onion services in the Tor network. After a user visits a SecureDrop website, they are given a randomly generated code name. This code name is used to send information to a particular author or editor via uploading. Investigative journalists can contact the whistleblower via SecureDrop messaging. Therefore, the whistleblower must take note of their random code name.
From Wikipedia (CC BY-SA 4.0).