Companies in Essex are being warned to ensure staff are careful while checking their emails following a ransomware attack.
Police received a report from a company in Hatfield Peverel on Saturday December 11 that they had been targeted in an attack, which restricted the company’s access to their servers.
It is believed that a virus came into the business through what would at first appear to be a genuine email with attachments.
The attack is only made possible if a link or an attachment is opened or clicked.
Police believe it is a new strain of ransomware that is not picked up on most common anti-virus programmes used.
A police spokesman said: “By taking simple steps, there are many ways you can deter fraudsters.
“Make sure you have reliable security systems in place, remind staff to check the authenticity of emails and links. And please, back up your data and install the latest software and app updates on your devices.”
You can report fraud by calling 101 or reporting information online by visiting www.essex.police.uk
You can also report fraud to Action Fraud by calling 0300 123 2040 or Crimestoppers anonymously on 0800 555 111.