The defensive market is split by telemetry domain, not by attack. Identity tools see the stolen session. Pipeline and supply-chain tools see the workflow. Each is excellent at its half — and blind at the hand-off where real attacks cross. Here's who covers what.
| Tool | Category | Sees identity compromise |
Sees pipeline integrity |
Correlates both (one kill chain) |
|---|---|---|---|---|
| Push Security / Grip | Identity / ITDR | ● | ○ | ○ |
| StepSecurity (Harden-Runner) | CI/CD runtime | ○ | ● | ○ |
| Cycode / Legit / Apiiro / OX | ASPM / pipeline posture | ◑ | ● | ○ |
| GitGuardian | Secrets / NHI | ○ | ◑ | ○ |
| Snyk / Socket | SCA / OSS packages | ○ | ◑ | ○ |
| GitHub Advanced Security | Native scanning | ○ | ◑ | ○ |
| BlueFlag Security | SDLC identity / behavior | ◑ | ◑ | ◑ |
| Microsoft Defender (full stack) | XDR | ● | ◑ | ◑ |
| Sentinel | Cross-domain detection | ● | ● | ● |
Our read of publicly documented capabilities, mid-2026. "Partial" means a tool touches the domain from one angle (e.g. ASPM tools score developer behavior but don't ingest identity-threat signals; GitGuardian sees secrets but not the human session). BlueFlag is the closest single competitor; Microsoft Defender can correlate identity + pipeline but only for all-in Microsoft shops, not GitHub-native teams. Categories simplified for clarity — happy to go deeper on any row.
It isn't an oversight — it's structural. The two domains consume different telemetry (browser/IdP sessions vs. runner/SCM/process signals) and sell to different buyers (identity teams vs. AppSec/platform teams). Incumbents are anchored to their signal source and their budget line. Bridging means ingesting both signal types and reasoning across them — a different product shape, not a feature an existing tool bolts on.
Sentinel is built for that one job: correlate the identity anomaly, the unlinked workflow change, and the novel egress into a single, same-hour incident — for GitHub-native teams that don't have a 24/7 SOC stitching it together by hand.
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