The Mullvad Blog

The firewall bug in macOS 14 Sonoma betas and release candidates that we blogged about last week has been fixed by Apple. Read more

The macOS 14 Sonoma betas and release candidate contain a bug that causes the firewall to not filter traffic correctly. As a result, our app does not work. Read more

Mullvad is mostly unaffected by the TunnelCrack VPN vulnerabilities. This is our response to the recently disclosed set of attack vectors on VPNs. Read more

The quantum-resistant tunnels feature is finally stabilized and can easily be enabled for all WireGuard tunnels in our desktop app. Read more

A security assessment of the Mullvad VPN apps has concluded that the app is well-architected from a security perspective. Some issues were found, and they have been fixed to the extent possible. Read more

An ongoing security audit of our app identified that Android leaks certain traffic, which VPN services cannot prevent. The audit report will go public soon. This post aims to dive into the finding, called MUL22-03. Read more

Our latest beta (app version 2022.3-beta1) and some WireGuard servers now support VPN tunnels that protect against attackers with access to powerful quantum computers. Read more

The app now has an easy-to-remember two word name as its device identifier. This both solves the dreaded “too many keys”-issue and it gives users a more friendly way of identifying their devices. Read more

We found that our Windows app’s firewall rules did not properly block DNS outside the VPN tunnel when split tunneling was used. However, programs would not really use this hole or cause any leaks. Read more

Apple’s Private Relay (Beta) feature calls home to Apple servers without respecting the firewall rules of the system, creating a leak that neither we, nor you, can stop without disabling the entire Private Relay feature. Read more