The company fell victim to the attack just days before Christmas, when it instructed staff to work from home, announcing network disruptions that mostly impacted the print newspaper.
Right from the start, the Guardian said it suspected ransomware to have been involved in the incident, and this week the company confirmed that this was indeed the case.
In an email to staff on Wednesday, The Guardian Media Group’s chief executive and the Guardian’s editor-in-chief said that the sophisticated cyberattack was likely the result of phishing.
