EasyJet did not say when the attack took place. "As soon as we became aware of the attack, we took immediate steps to respond to and manage the incident and engaged leading forensic experts to investigate the issue." EasyJet said it notified Britain's National Cyber Security Centre and the Information Commissioner's Office, while it had shut down the area where unauthorised access had been obtained. "Our investigation found that the email address and travel details of approximately nine million customers were accessed," the airline said. "These affected customers will be contacted in the next few days." It comes after British mobile phone giant Vodafone last week said it had heightened its own security as it warned of increased cyber attacks by criminals profiting from the pandemic. Vodafone added that it anticipated "a continued increase in volume and scale of financially-motivated cyber attacks" amid the virus outbreak.