ransomware

noun

ran·​som·​ware ˈran(t)-səm-ˌwer 

: malware that requires the victim to pay a ransom to access encrypted files

In September of 2013, security for small accounting offices changed forever with the appearance of a new class of threats called ransomware. … you open a file attached to an innocent-looking e-mail, and the program encrypts key files and drives so they cannot be accessed. The files are locked until you pay a ransom.

—Dave Mcclure

With ransomware, a hacker slips into a system, then puts encryption controls in place that locks users out. The hackers then demand money to "unlock" the data.

—Elizabeth Millard

Today's ransomware scammers often demand payment in bitcoin because the digital currency is easy to use, fast and provides a heightened anonymity for the scammers, according to the FBI warning.

—Susan Tompor

Examples of ransomware in a Sentence

Recent Examples on the Web

These steps seem costly, but so did cybersecurity preparation before ransomware threats became routine. —Victor Nian, Fortune, 10 May 2026

Thousands of North American schools and universities were paralyzed Thursday after a ransomware attack on a key educational software provider. —Tom Chivers, semafor.com, 8 May 2026

Schools and colleges scramble A ransomware group known as ShinyHunters claimed responsibility for the breach on its dark web site. —Dan Goodin, ArsTechnica, 8 May 2026

Schools and universities, rich in personally-identifiable information on students, teachers and employees, have become prime targets for criminal hackers in ransomware attacks. —ABC News, 8 May 2026

Word History

First Known Use

2005, in the meaning defined above

Rhymes for ransomware

• aftercare
• anywhere
• billionaire
• chinaware
• debonair
• dinnerware
• disrepair
• doctrinaire
• earthenware
• everywhere
• frigidaire
• kitchenware