Cybersecurity Glossary: Terms Explained in Plain English | TecnetOne

What Is a CISO? Definition | TecnetOne Glossary

Written by Tecnet One | Oct 7, 2026, 5:38:49 PM

The CISO (chief information security officer) is the executive responsible for a company's information security strategy: they set priorities, budget and policies and answer to leadership for cyber risk. Companies that do not need a full-time CISO can hire a virtual CISO, or vCISO.

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