cybercrime

noun

cy·​ber·​crime ˈsī-bər-ˌkrīm 

plural cybercrimes

: criminal activity (such as fraud, theft, or distribution of child pornography) committed using a computer especially to illegally access, transmit, or manipulate data

The growing number of mobile devices, such as phones and tablets, and the popularity of social networks give them new avenues in which to expand their cybercrime.

—Eric Geier

Cybercrime is taking a bottom-line toll on the corporate workplace. Last year, losses exceeded $100 million—and that figure continues to skyrocket as security breaches pose an increasing threat to U.S. corporations, banks, and even the government.

—Beth Wilson

also : an instance of such activity

The increasing prevalence of cloud computing … has made storing and accessing important electronic data easier and less expensive than ever. However, the expanding number of documents and other information being stored electronically has increased the threat of cybercrimes, including data breaches.

—John Squitero

cybercriminal

ˈsī-bər-ˌkri-mə-nᵊl 

-ˈkrim-nəl

noun

plural cybercriminals

More small businesses are falling victim to "ransomware," to which malicious code locks up computer files and cybercriminals demand a ransom to free them.

—Ruth Simon

Examples of cybercrime in a Sentence

Recent Examples on the Web

According to a 2025 study by Cybersecurity Ventures, global damage from cybercrime is projected to reach $10.5 trillion annually by 2025. —William Jones, USA Today, 30 June 2025

The attack is believed to be part of a hacking spree perpetrated by a cybercrime group known as Scattered Spider. —Thomas Brewster, Forbes.com, 24 June 2025

Reforming cybercrime laws, increasing public awareness, and strengthening international cooperation are all necessary for Africa to combat cybercrime. —Alexander Onukwue, semafor.com, 23 June 2025

This information has been reported by Stage 32 to the FBI and by Martinsen to UK Action Fraud, a national reporting center for fraud and cybercrime that passes reports to the National Fraud Intelligence Bureau, which then decides whether to refer to local police forces for investigation. —Max Goldbart, Deadline, 4 June 2025

Word History

First Known Use

1991, in the meaning defined above

Rhymes for cybercrime

• aforetime
• allozyme
• anytime
• christmastime
• dinnertime
• guggenheim
• isozyme
• lysozyme
• maritime
• mesenchyme
• overtime
• pantomime

Kids Definition

cybercrime

noun

cy·​ber·​crime

ˈsī-bər-ˌkrīm

: criminal activity (as fraud or theft) committed using a computer especially to illegally access, transmit, or manipulate data

also : an instance of such activity

Legal Definition

cybercrime

noun

cy·​ber·​crime ˈsī-bər-ˌkrīm 

: crime (as theft, fraud, intellectual property violations, or distribution of child pornography) committed electronically