EFEShanghai, China

A hacker named ChinaDan claimed to have obtained personal information from 1 billion Chinese citizens after an alleged leak of a Shanghai Police database.

In a message posted on popular hacking forum Breached Forums, the user claimed to also be in possession of "several billion case files" from police, with data including name, address, place of birth, national ID number, identity, telephone number and "full details" of the crimes described.

ChinaDan said he offers to sell all this data in exchange for 10 bitcoins, the equivalent of about $ 200,000.