From BBC News:
A computer technician at Mossack Fonseca has been arrested on suspicion of removing large amounts of data from the company, the BBC understands.
The employee was arrested at the law firm’s Geneva offices after the company provided information to prosecutors. The employee is accused by the firm of theft of data, unauthorised access and breach of trust.
The anonymous source behind the Panama Papers spoke out in May, offering to help law authorities make prosecutions in return for immunity.
In a 1,800-word statement, “John Doe” said he had never worked for a spy agency or a government and cited “income equality” as a motive for the leak.