German news outlet Bild am Sonntag has reported that hackers have breached the systems of a Liechtenstein-based bank and are threatening to release customer account data if a ransom is not paid.
Hackers are allegedly demanding 10 percent of account balances paid in Bitcoin for the information to be withheld, threatening to release the information if the ransom is not paid by the seventh of December 2016.
The hack is allegedly in response to Chinese-owned, Valartis Bank Liechtenstein, whose customers who supposedly engage in tax evasion.
Director Andreas Insam told Bild am Sonntag it has alerted the authorities and that investigations are ongoing.
Bild.de has blocked out the Bitcoin addresses so it is not yet possible to track if any ransoms have been paid.