Audit ID: PR-2026-REV
Verified Analysis
Proton Infrastructure Audit
Evaluation of the Swiss-based privacy suite, zero-access encryption, and Secure Core architecture.
01. Secure Core Architecture
Proton VPN stands out in our infrastructure testing due to its Secure Core architecture. By routing traffic through multiple servers in privacy-friendly jurisdictions (Switzerland, Iceland, and Sweden) before reaching the destination, it provides a robust defense against network-based correlation attacks.
[+] Encryption: AES-256 / ChaCha20
[+] Jurisdiction: Switzerland (Swiss Federal Data Protection)
[+] Server Architecture: Full Disk Encryption (FDE)
[+] Feature: NetShield Ad/Malware Filtering
[+] Jurisdiction: Switzerland (Swiss Federal Data Protection)
[+] Server Architecture: Full Disk Encryption (FDE)
[+] Feature: NetShield Ad/Malware Filtering
Technical Verdict
Proton is verified for end-to-end privacy and immunity from local network surveillance. Technical integration for direct procurement is currently in the Agency audit queue.