cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˌkyu̇r-ə-tē How to pronounce cybersecurity (audio)
: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack

Example Sentences

Recent Examples on the Web Critical infrastructure in the U.S. is divided into 16 sectors, covering areas such as financial services, chemicals, the defense industrial base and energy companies, with a federal agency assigned to oversee cybersecurity risk management for each sector. James Rundle, WSJ, 7 June 2023 At a panel Tuesday morning hosted at one of Verizon’s Washington offices, Chris Novak, managing director of cybersecurity consulting at the company and also a member of the Cybersecurity and Infrastructure Security Agency’s advisory board, expanded on that advice. Rob Pegoraro, PCMAG, 7 June 2023 The team led by the special counsel, Jack Smith, has been asking witnesses about the events surrounding the firing of Christopher Krebs, who was the Trump administration’s top cybersecurity official during the 2020 election. Maggie Haberman And Jonathan Swan,, 31 May 2023 But the biggest challenge for imprisoning a ransomware criminal remains the havens that nations like Russia, China, North Korea and Iran may offer them, said Carlin, now co-head of the cybersecurity and data protection practice at Paul Weiss and a partner in its litigation department. Tim Starks, Washington Post, 16 May 2023 Still, officers could have gotten a subpoena to see who was on the other end of the call, said Susan Landau, a professor of cybersecurity and policy at Tufts University. Gina Barton, USA Today, 20 Apr. 2023 For instance, San Diego City College just was approved to add a degree in cybersecurity and defense. Diane Bell, San Diego Union-Tribune, 17 Apr. 2023 This year, Adobe started its own internship program with Bowie State, focused on cybersecurity. Natasha Singer, New York Times, 5 Apr. 2023 Lewis & Clark has not publicly blamed Vice Society for the attack, though several cybersecurity professionals have posted screenshots of the organization taking responsibility for the breach. oregonlive, 4 Apr. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cybersecurity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1989, in the meaning defined above

Time Traveler
The first known use of cybersecurity was in 1989

Dictionary Entries Near cybersecurity

Cite this Entry

“Cybersecurity.” Dictionary, Merriam-Webster, Accessed 10 Jun. 2023.

Legal Definition


cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˈkyu̇r-ə-tē How to pronounce cybersecurity (audio)
: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!