Since a Ricochet user does not register or log in anywhere to use Ricochet, not even with a password, it is important to implement layered physical security, including disk encryption, to protect Ricochet. Active and passive surveillance techniques can still tell if you're using the Internet, and when, but not necessarily what you're doing on the Internet. Even though Ricochet uses Tor, other applications will not be using Tor unless you've independently set up additional Tor services on your computer. An already-compromised computer system will typically defeat the privacy protections that Ricochet offers, such as a keystroke logging malware. Ricochet has not been subjected to an independent security audit. Ricochet connects to the Tor network automatically.
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Ricochet is a portable application, users do not need to install any software to use Ricochet. The use of Tor hidden services prevents network traffic from ever leaving the Tor network, thereby preserving anonymity and complicating passive network surveillance. When you close a conversation, the chat log is not recoverable. Contact list information is stored locally, and it would be very difficult for passive surveillance techniques to determine whom you're chatting with. There is no need to register anywhere in order to use Ricochet, particularly with a fixed server. Message content is cryptographically authenticated and private. Ricochet does not reveal user IP addresses or physical locations because of Tor. Ricochet users are not personally identifiable. Before two Ricochet users can talk, at least one of them must privately or publicly share their unique screen name in some way. A user screen name (example: “ricochet:hslmfsg47dmcqctb“) is auto-generated upon first starting Ricochet the first half of the screen name is the word "ricochet", with the second half being the address of the Tor hidden service. This way, Ricochet communication never leaves the Tor network. Further, using Tor (anonymity network), Ricochet starts a Tor hidden service locally on a person's computer and can only communicate with other Ricochet users who are also running their own Ricochet-created Tor hidden services.
Ricochet is a decentralized instant messenger, meaning there is no server to connect to and share metadata with.
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