Dydd Gwener daeth adroddiadau bod ymosodiad seiber byd-eang yn amharu ar filoedd o sefydliadau a diwydiannau mewn dros 150 o wledydd. Cafodd peiriannau eu heintio â meddalwedd wystlo, gan amgryptio ffeiliau cyfrifiadurol a hawlio pridwerth am eu rhyddhau.  Er nad yw cymhelliad yr ymosodiad yn glir, mae'n destun ymchwiliad troseddol.
On Friday it was reported that a global coordinated cyber attack disrupted thousands of organisations and industries in more than 150 countries.  Ransomware infected machines, resulting in the encryption of computer files with demands for ransom payments being requested. Although the motive behind the attack is unclear, it is being treated as a criminal investigation.