Cybersecurity glossary

Cybersecurity definition

What is Shift Left?

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Definition

Moving security testing and review earlier in the software development process — into the IDE and pull request instead of a pre-release gate — so flaws are caught and fixed while they're still cheap to change.

Where Shift Left fits in the security landscape

These beginner lessons use this term while explaining the surrounding security control.

Related cybersecurity terms

DevSecOpsA practice and culture that builds security checks directly into the software delivery pipeline — automated scanning, policy-as-code gates — rather than treating security as a separate review that happens after development is done.

Use this definition as a baseline when reading category and product pages. Implementations, editions, and vendor terminology can differ; current product claims should be checked against the source-linked profile.

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