Rex Mundi is known for hacking into sites and then holding the data for ransom, as it recently did to a Swiss bank. The hacking group has been active for at least two years and has become known for scanning for vulnerabilities, extracting data and ransoming it for small amounts. The bank’s spokeswoman said the dumped data represented no particular financial risk for clients or the bank The hackers had played on Swiss banks’ reputation for helping clients conceal information from tax authorities”]