We recommend contacting us over Tor if you can. Linux and pre-configured to connect using the anonymising system Tor. Tails is an operating system launched from a USB pc world bitcoin wikileaks or a DVD that aim to leaves no traces when the computer is shut down after use and automatically routes your internet traffic through Tor. Tails will require you to have either a USB stick or a DVD at least 4GB big and a laptop or desktop computer.
Our submission system works hard to preserve your anonymity, but we recommend you also take some of your own precautions. Please review these basic guidelines. In our experience it is always possible to find a custom solution for even the most seemingly difficult situations. If the computer you are uploading from could subsequently be audited in an investigation, consider using a computer that is not easily tied to you. Even those who mean well often do not have the experience or expertise to advise properly. This includes other media organisations. If you are a high-risk source, avoid saying anything or doing anything after submitting which might promote suspicion.
In particular, you should try to stick to your normal routine and behaviour. If you are a high-risk source and the computer you prepared your submission on, or uploaded it from, could subsequently be audited in an investigation, we recommend that you format and dispose of the computer hard drive and any other storage media you used. If you used flash media to store sensitive data, it is important to destroy the media. If you do this and are a high-risk source you should make sure there are no traces of the clean-up, since such traces themselves may draw suspicion. If a legal action is brought against you as a result of your submission, there are organisations that may help you. The Courage Foundation is an international organisation dedicated to the protection of journalistic sources. We specialise in strategic global publishing and large archives.