> I read again a bit about Signal app and the license is GPLv3 for client and > AGPLv3 for server. > However, this app use servers with a (very) few metadata (day of last > connection, but not who interact with you).
https://www.gnu.org/philosophy/who-does-that-server-really-serve.html You cannot verify if a server you do not control runs free software or not. About signal was is important is not which license the software on the server has. It is whether signal enables zero knowledge encryption. Which signal does. > I wondered how you feel about using this app considering privacy. > The data is zero knowledge encrypted which provides privacy. On anonymity signal is terrible. You cannot use fictional phone numbers. Phone numbers open for various tracking options from adversaries who have access to resources. In some countries you cannot buy a sim card anonymously. Therefore signal is only for people who want encryption of data. But do not require that an adversary might be able to monitor that communication takes place.
pEpkey.asc
Description: application/pgp-keys
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