It is used perfect forward secrecywhich means that a new unique encryption key is created each time a connection is created. ProtonVPNs security is absolutely impeccable, as only open source encryption protocols are used. It gives the huge advantage that it is impossible to sneak backdoors or the like into the encryption protocol, which could otherwise seriously compromise security. Connections are encrypted with 256 bits keys and handshakes (connection creation) with 2048 bits, both of which are the highest standard in encryption.ĭepending on the device used, the connection is encrypted with either the OpenVPN or IKE2v / IPSec, both of which are open source software, which means that the program code is publicly available. The safety of one VPNconnection to ProtonVPN can't get better, because only strong encryption keys and credible encryption protocols are used.
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