A type of malicious cyberattack where the attacker encrypts the victim's data and demands a ransom for the decryption key.
Description
A ransomware attack is a form of cybercrime that involves the use of malicious software to block access to a computer system or files, typically by encrypting them. The attacker then demands payment, often in cryptocurrency, to restore access to the data. Ransomware can target individuals, businesses, and even government agencies, causing significant operational disruption and financial loss. In many cases, victims are given a deadline to pay the ransom, leading to high-pressure situations. Notable ransomware attacks include the WannaCry incident in 2017, which affected over 200,000 computers across 150 countries, and the Colonial Pipeline attack in 2021 that led to fuel supply disruptions in the U.S. Organizations are urged to implement robust cybersecurity measures, regular backups, and employee training to mitigate the risk of falling victim to ransomware attacks.
Examples
- WannaCry: A global ransomware attack in May 2017 that affected Windows computers, demanding ransom payments in Bitcoin.
- Colonial Pipeline: A ransomware attack in May 2021 that paralyzed fuel supplies across the Eastern U.S., leading to a $4.4 million ransom payment.
Additional Information
- Ransomware attacks can be prevented through regular software updates and strong network security practices.
- Paying the ransom does not guarantee data recovery and may encourage further attacks.