


OpenVPN has been the gold standard for VPN encryption since 2001. It’s known for its reliability and flexibility, and works on both TCP and UDP connections. PIA uses OpenVPN as its default protocol with AES-128-GCM encryption and RSA-4096 handshake, but you can customize your settings or upgrade to AES-256 for maximum protection.
WireGuard is a modern protocol designed for speed and simplicity using state-of-the-art cryptography, including ChaCha20 for encryption and Curve25519 for key exchange. Its lightweight codebase delivers faster connection establishment and better speeds, especially on mobile devices and lower-powered hardware. It’s available in every PIA app.
IPSec delivers tough security for iOS users through strong encryption, authentication, and connection stability. When your iPhone or iPad switches from Wi-Fi to cellular data, IPSec keeps your VPN tunnel active, preventing gaps in protection that could expose your traffic to interception, man-in-the-middle, or other cyberattacks.














