Computer chaos as antivirus IDs Windows as threat, shuts down systems

Story at The Register, https://www.theregister.co.uk/2017/04/25/webroot_windows_wip...

"The glitch first manifested itself as customers complained that Webroot was mistakenly flagging Facebook.com as a dangerous identity-fishing site."

Mistakenly flagged? Pretty sure that would have been intentional.