BBC News: Ransomware cyber-attack a wake-up call, Microsoft warns

15 May 2017

Becky Pinkard, from Digital Shadows, a UK-based cyber-security firm, told AFP news agency that it would be easy for the initial attackers or "copy-cat authors" to change the virus code so it is difficult to guard against.

"Even if a fresh attack does not materialise on Monday, we should expect it soon afterwards," she said.