Hackers have reportedly breached a bank of Liechtenstein and extort customers by threatening to release their account details online if a ransom is not paid.
Attackers hit Chinese bank Valartis Bank Liechtenstein by hijacking data from its clients, which include politicians, actors, and wealthy individuals from Germany and other countries, as reported by Bild am Sonntag.
Hackers allegedly require up to 10 percent of bills are in their hands asking for them to be paid to Bitcoin.
Attackers threaten to release information to authorities and the media if ransom is not paid by December 7.
Andreas Insam, director of the bank, told the Bild am Sonntag that they have warned the authorities and that investigations are under way.
The German newspaper published one letter (paywalk) of hackers who claim to have enough gigabytes of data from their accounts and all their mail since October of this year.
The letter from hackers is written in German and tries to threaten bank customers by revealing possible tax evasion, adding that if they pay ransom to Bitcoin they protect both the attackers and the ones they chose to pay.
The attackers accused the Bank's Board of Directors of not paying them for services security, possibly some bug bounty.
Bild.de has hijacked Bitcoin addresses so we can not see if a ransom has been paid.
