A man has been arrested on suspicion of stealing confidential customer data from Swiss private bank Hyposwiss.
The Swiss Federal Prosecutor’s Office said the former contract employee at the bank was arrested on February 16 and remains in custody.
A criminal investigation was launched in January after the man approached a law firm and offered to sell the confidential data. He is accused of economic espionage and violating banking secrecy law.
The Tages-Anzeiger newspaper reported on Wednesday that the data partly concerned the account of a wealthy Russian businessman.
It is the latest in a series of cases of Swiss bank data being stolen by employees with a view to being sold.