Europol says in December, law enforcement officials in Austria, Bosnia and Herzegovina, Germany, and the U.K. raided two people in an ongoing investigation against the extortion group DD4BC. The group has been responsible for a number of DDoS related extortion schemes against targets in the public sector, including banks, publishers, and financial institutions. They also claimed responsibility for a wave of extortion attempts made towards people who found their email address published as part of the Ashley Madison hack.”]