Sophos' anti-virus software hiccuped this week as a result of a false positive update that quarantined or deleted crucial files of the anti-virus software itself; a 'friendly-fire' situation that saw many corporate and business networks vulnerable. Read More ..
But the knock-on effect to businesses were wide ranging, including in one case sending a U.K. building society into the Stone Age for a day after their banking systems crumbled as a result of the anti-virus software's failure.
Earlier this week, Sophos antivirus software recognized a malware definition update as malware. The update files were detected as SSH/Updater-B malware by the Sophos software, which forced crucial update and core antimalware files into quarantine, resulting in the software grinding to a halt. Alert emails were sent en masse to administrators which required manual intervention on each and every machine, according to reports.
A subsequent update fixed the issue later on Wednesday, more than half a day since Sophos-running machines around the world first went haywire.