Blast Radius
The scope of systems users or functionality that could be affected by a failure or change.
Plain English
How much could break if this goes wrong?
In context
Blast radius describes the possible reach of an incident or risky change and helps teams plan containment.
Example
“What's the blast radius if we deploy this globally?”
When you'll hear this
- incident response
- architecture review
- production deployment
Common misunderstanding
Blast radius describes impact scope rather than the underlying cause.
Commonly used by
Related terms
Updated: 2026-08-25
