Six privacy shield capabilities for end-to-end protection
AES-256 is the strongest publicly available symmetric cipher, with a 256-bit key and a 2^256 key space that would take longer than the age of the universe to brute-force. ProtonVPN pairs it with ChaCha20 and WireGuard, issuing a unique session key per connection.
No-logs is a verifiable technical commitment, not a slogan. ProtonVPN records no timestamps, session lengths, real IPs, DNS queries or browsing history. Registered in Switzerland, it sits outside intelligence alliances, backed by annual public third-party audits.
If an exit server is compromised, a normal VPN exposes your real IP. Secure Core routes traffic through privacy-friendly relay servers in Switzerland, Iceland and Sweden first, then to the destination β so attackers only ever see the relay IP.
NetShield blocks malicious domains at the DNS layer, stopping trackers, malware and ads before the request leaves your device. It speeds up pages, cuts data usage and reduces phishing and ransomware exposure.
When the VPN drops unexpectedly, Kill Switch cuts all traffic within milliseconds, preventing any packet from leaving in plaintext. It can be global or per-app, ensuring your real IP never leaks during tunnel reconnection.
One account covers your whole home and office, with 10 devices online at once. Clients span Windows, macOS, Android, iOS, Linux and routers β one subscription, protection everywhere.
Based in Geneva, outside the Five/Nine/Fourteen Eyes alliances. User data is never stored or shared and cannot be legally compelled.
All clients and protocols are open source. Multiple third parties have completed independent penetration tests.
Free VPN download works with no data caps, no throttling and no ads β the same encryption as paid plans.
Free VPN download of ProtonVPN to unlock AES-256 encryption, no-logs, Secure Core and more.
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