An aggressive wave of cyberattacks hit companies and public institutions around the globe Friday, causing international havoc and bringing many services to a standstill.
Computers were locked up and users’ files held for ransom when dozens of countries were hit in a cyberextortion attack that targeted hospitals, companies and government agencies.
What is ransomware?
Ransomware is a type of malware that attempts to extort a computer user for money. In some cases, the ransomware encrypts certain files and holds them hostage.
In other cases, as happened Friday, it locks a user out of their entire computer system until a ransom is paid. Some ransomware that encrypts files increases the stakes after a few days, demanding more money and threatening to delete files altogether.