internet security

/ˈɪntərˌnɛt sɪˈkjʊrɪti/ · in·ter·net se·cu·ri·ty

noun

The set of measures, technologies, and practices used to protect computers, networks, and data transmitted over the Internet from unauthorized access, attacks, or damage. The company invested heavily in internet security after a ransomware attack compromised its servers.
The overall state of being protected against online threats, encompassing confidentiality, integrity, and availability of digital information. Strong passwords and two‑factor authentication are basic components of good internet security.

Synonyms

cybersecurity online security network security information security computer security data protection digital security IT security

Antonyms

vulnerability insecurity exposure risk

Did you know? The term "internet security" first appeared in mainstream media in 1994, but by the early 2000s it was largely supplanted by the broader buzzword "cybersecurity".

Related terms

firewall encryption malware phishing hacking privacy

Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 19, 2026