differential-review

To catch security regressions in a pull request code diff, perform a differential security review that prioritizes risky behaviors like auth and crypto changes. This approach validates code invariants against git history and estimates blast radius to prevent merge vulnerabilities.

Differential security analysis is a targeted review of code changes rather than the entire codebase. You need it when reviewing security-sensitive changes before merge, validating if removed checks reintroduce vulnerabilities, or documenting findings with attacker scenarios for stakeholder audits.

Blast radius estimation during a git history security review assesses the potential impact scope of risky changes by analyzing removed-code provenance and line-level references. It scales review effort adaptively across codebases to pinpoint affected system areas.

Yes, you can use adaptive code analysis for large commit ranges because review depth scales automatically according to codebase size classifications. This ensures evidence-backed findings and comprehensive markdown reporting without overwhelming the analysis.

The best way to document high risk vulnerabilities with attacker modeling is to generate a structured markdown report artifact that includes concrete attacker scenarios, severity ratings, and actionable recommendations anchored by line-level references from the diff.

Test coverage matters when validating removed code in a diff because it verifies whether removing checks or invariants reintroduces known classes of security issues. Differential analysis includes test coverage checks to ensure removed validations do not leave remaining code exposed.