This timestamp is used to protect accounts from brute force attacks. This timestamp is overwritten each time the user logs in and does not contain any information about where they logged in from. In its Privacy Policy, ProtonVPN states clearly that it does not log “users’ traffic or the content of any communications.” The only information it keeps is a single timestamp of a user’s most recent successful login. ProtonVPN also routes all users’ DNS queries through the VPN tunnel, preventing DNS leaks from revealing user online activity. Perfect Forward Secrecy protects all VPN connections, so no one can capture users’ traffic and hope to decode it later if a key is compromised in the future.

Support for Perfect Forward Secrecy was one of the main criteria the ProtonVPN team used when they decided which encryption cipher to use. Its Windows and Linux clients use the OpenVPN protocol and its Android, iOS, and macOS apps use the IKEv2/IPSec protocol. All ProtonVPN connections use AES 256-bit encryption, 4096-bit RSA for the key exchange, and HMAC-SHA384 for message authentication. ProtonVPN only uses encryption ciphers and VPN protocols that do not have any known vulnerabilities. ProtonVPN Review With Discount Coupon 2023: Get Upto 20% Off Now It has financially supported civic organizations around the world and advocated for stronger Internet privacy protections to the United Nations and national governments. Proton Technologies AG, ProtonVPN’s parent company, also works to promote Internet privacy, freedom of speech, and open source encryption.

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