Cybersecurity Glossary: Terms Explained in Plain English | TecnetOne

What Are Logs in Cybersecurity? Definition | TecnetOne Glossary

Written by Tecnet One | Oct 7, 2026, 5:39:01 PM

Logs, or event logs, are the files where systems, applications and network devices automatically record what happens: sign-ins, errors, configuration changes or connections. In cybersecurity they are the evidence used to detect attacks and investigate incidents, which is why they are centralized in a SIEM and kept for a defined period.

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