Hexion, Momentive and Norsk Hydro all hit by ransomware cyber attacks

Three large chemical manufacturing companies based in Norway and the US have fallen victim to ransomware attacks, after a program called LockerGoga gained access to systems, encrypted files and disrupted operations. On 19 March the global aluminium producer Norsk Hydro was forced to shut down its plants and its worldwide network after a security breach blocked access to files and changed the passwords to user accounts across several of its corporate and production control systems. The malware issued a ransom note stating that files had been encrypted and demanding payments in bitcoin to restore access to data.