A major cyber attack hit companies in Europe, the Middle East and the US on Tuesday, wreaking havoc for employees and customers alike.
The attack caused computers to stop working, instead displaying a ransom note demanding $300. The widespread attack affected global and national organisations including the Ukranian National Bank, British advertising firm WPP and logistics company Maersk.
What is ransomware?
Ransomware is a type of cyber attack that locks all digital files and demands payment in order for them to be returned. Computers that are infected with a ransomware virus become unusable save for displaying a ransom note.
It is difficult to recover files from a computer that has been infected with ransomware and victims are often advised not to pay the fee. If they do decide to they are advised that their information may not be returned fully and that it has been compromised.