Tools like Proton VPN play a vital role in keeping the internet free,” Proton said. “The cause of freedom has no borders, and we must stand together for it to succeed. Proton said it started developing the Stealth protocol after Russia invaded Ukraine and Moscow blocked access to thousands of websites and web-based services. It is also compatible with Proton VPN’s VPN Accelerator technology. It is optimized to provide “higher performance” than other VPN obfuscation protocols built on OpenVPN over TCP. Stealth is open source and not heavy on resources. Proton VPN’s Stealth protocol allows users to fly under the radar, escaping deep packet inspection (DPI) and other internet filters.

Protocols like OpenVPN, IKEv2, and WireGuard are relatively easy to detect, Proton noted.

Today, repressive governments have the technology to sniff out VPN connections. With Stealth enabled, your Proton VPN connection will be almost completely undetectable,” the company said. “We designed our Stealth protocol from the ground up to not have these issues. However, Stealth is based on the TLS protocol, making it much harder for web censors and scanners to detect. According to Proton, most protocols are based on the UDP, which makes it easier for authoritarian regimes to detect and block them. The new Stealth protocol makes VPN traffic look like regular traffic. Stealth is the latest feature the company will add to the service, which already boasts other remarkable features like Secure Core VPN and VPN Accelerator. Proton VPN is on a mission to make its VPN more secure, private, and faster. Stealth is currently being rolled out on Proton VPN’s iOS, macOS, and Android apps. “You’ll be able to bypass advanced VPN blocks, access censored sites, and communicate with people on social media, even if your government is trying to restrict access,” Proton said in a press release. Stealth allows users to access the web freely and stay undetectable to government scanners.

The new protocol, which will be available for both free and premium users of Proton VPN, is more “censorship-resistant” than many other obfuscation tools available today, the company explained. Proton VPN on Tuesday unveiled a new obfuscation protocol, “Stealth,” designed to allow users to escape internet censorship and attempts to block VPN traffic.

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