Mullvad was launched in March 2009 by Amagicom
AB in Göteborg, and it had begun by supporting connections via the
OpenVPN protocol in 2009. Mullvad was an early adopter and supporter of the
WireGuard protocol, announcing the availability of the new VPN protocol in March 2017 and making a "generous donation" supporting WireGuard development between July and December 2017. In September 2018, the cybersecurity firm
Cure53 performed a
penetration test on Mullvad's macOS, Windows, and Linux applications. Seven issues were found which were addressed by Mullvad. Cure53 tested only the applications and supporting functions. No assessment was made on the Mullvad server-side and back end. In April 2020, Mullvad partnered with
Malwarebytes and provided WireGuard servers for their VPN service, Malwarebytes Privacy. In May 2022, Mullvad started officially accepting
Monero. On 18 April 2023, Mullvad's head office in Gothenburg was visited by officers from the
National Operations Department of the
Swedish Police Authority who had a search warrant to seize computers being used by Mullvad containing customer data. Mullvad demonstrated that in accordance with their policies, no such data existed on their systems. After consulting with the prosecutor, the officers left without seizing any equipment or obtaining customer information. Mullvad had released a public statement in relation to this information in a blog post on their website two days later, also mentioning that it was their first time that their offices had been searched by authorities. In a letter sent to Mullvad nine days after the search, the Swedish Police Authority stated that they had conducted the search at the request of
Germany for an ongoing investigation. The investigation involved a blackmail attack that targeted several institutions in the state of
Mecklenburg-Western Pomerania which revealed
IP addresses that were traced back to Mullvad's VPN service. On 29 May 2023, Mullvad announced that they would be removing support for
port forwarding, effective on 1 July 2023. This was done due to the use of port forwarding for illegal activities, with this causing interference by law enforcement, Mullvad IP addresses getting blacklisted, and hosting providers canceling their services. ==Service==