Cyber criminals infected 70% of storage devices that record data from federal surveillance cameras in Washington D.C. in a cyber attack. Ransomware is an infamous piece of malware that has been known for locking up computer files and then demanding a ransom in Bitcoins in order to help victims unlock their files. The only safe way of dealing with the threat is prevention, according to experts. The best defense is to create awareness within the organizations, as well as to maintain back-ups that are rotated regularly.
Source: https://thehackernews.com/2017/01/ransomware-cctv-hack.html