: It is built on WireGuard and compatible with Proton's "VPN Accelerator" technology, maintaining high speeds despite the extra layer of encryption. Key Launch Details Defeat censorship with Stealth, our new VPN protocol
: Unlike many protocols that use UDP—which is easily flagged and blocked by firewalls—Stealth uses obfuscated TLS tunneling over TCP to stay undetected. : It is built on WireGuard and compatible
: Stealth disguises VPN traffic as "normal" web activity, specifically making it look like common HTTPS connections. The primary goal of Stealth is to bypass
The primary goal of Stealth is to bypass sophisticated blocks that traditional VPN protocols (like OpenVPN or WireGuard ) often fail to penetrate. The protocol was developed in response to a
: It establishes connections in a unique way that avoids alerting internet filters.
In October 2022, Proton VPN launched its custom to combat advanced internet censorship . The protocol was developed in response to a significant surge in censorship attempts following the 2022 Russian invasion of Ukraine and protests in Iran. How Stealth Works