Mullvad reports on their blog:
On April 18 at least six police officers from the National Operations Department (NOA) of the Swedish Police visited the Mullvad VPN office in Gothenburg with a search warrant.
They intended to seize computers with customer data.
In line with our policies such customer data did not exist. We argued they had no reason to expect to find what they were looking for and any seizures would therefore be illegal under Swedish law. After demonstrating that this is indeed how our service works and them consulting the prosecutor they left without taking anything and without any customer information.
If they had taken something that would not have given them access to any customer information.
Mullvad have been operating our VPN service for over 14 years. This is the first time our offices have been visited with a search warrant.
Update: DataBreaches contacted Mullvad to ask whether the warrant mentioned any specific user or was a broader type of “seize everything” warrant. Jan Jonsson explained that in Sweden, police do not have to show up with an actual copy of the warrant to give to those being searched. “It is enough for the police to say that they have one. Odd – Yes, but our law.,” Jan told DataBreaches.
Mullvad suspects that yes, it was user data and perhaps a specific user being sought, but as they said, they don’t maintain any user information. But they, too, would like to know the basis for the warrant. “We have contacted the police, and we have requested a copy of the request for a search warrant, and the protocol. No answer so far. We did ask our lawyer to follow up on this.,” Jan stated.
When they know more, they will share it, but they expect it to take a long time before they get any answers.