This is different from apps like Wire messenger, which stores info about your contacts on central servers. This is great for your privacy, since no one can get any more information than that without physical access to your device or those of the people you communicate with.

Notably, things we don’t have stored include anything about a user’s contacts (such as the contacts themselves, a hash of the contacts, any other derivative contact information), anything about a user’s groups (such as how many groups a user is in, which groups a user is in, the membership lists of a user’s groups), or any records of who a user has been communicating with.Īll message contents are end-to-end encrypted, so we don’t have that information either. The only information that is stored on the Signal servers for each account is the phone number you registered with, the date and time you joined the service, and the date you last logged on. When you use Signal, your data is stored in encrypted form on your devices.

All products of the Signal Foundation are published as free and open-source software. Signal Messenger, LLC is funded by the Signal Technology Foundation (aka Signal Foundation), a 501(c)(3) non-profit organization. In 2018, Marlinspike and Brian Acton founded Signal Messenger, LLC, to take over the development of both the Signal app and the Signal Protocol. In 2013, Moxie Marlinspike (real name Matthew Rosenfeld) founded Open Whisper Systems to develop the Signal app and protocol.

Clients for Android, iOS, Mac OS, Windows, Linux.

The Signal Messaging Protocol was independently audited in 2016.

Signal is generally considered the most secure messaging app in existence.

Here are some key features to consider when deciding whether the Signal app is right for you: Now we’ll briefly cover the main features of Signal encrypted messenger.

Occasional problems with sending and receiving.

Signal app for mac os