What is a Ransomware, recently seen in news?

What is a Ransomware, recently seen in news?

A. Space Debris

B. A form of malware

C. A software developed to fight with Covid-19

D. Mobile App launched by UN

Explanation:

A cyber-criminal gang that took a major US fuel pipeline offline over the weekend has acknowledged the incident in a public statement. The US issued emergency legislation after Colonial Pipeline was hit by a ransomware cyber-attack. Ransomware is a form of malware that encrypts a victim’s files. The attacker then demands a ransom from the victim to restore access to the data upon payment. Users are shown instructions for how to pay a fee to get the decryption key.