Cybersecurity Glossary: Terms Explained in Plain English | TecnetOne

What Is a Data Breach? Definition | TecnetOne Glossary

Written by Tecnet One | Oct 7, 2026, 4:38:46 PM

A data breach is an incident in which confidential information, such as customer data, credentials or records, is exposed or ends up in unauthorized hands. It can result from an attack, a configuration error or simple carelessness, and it usually requires the company to investigate, contain the damage and notify the people affected.

How TecnetOne handles it: Incident Response

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