platform-guideline checked
Microsoft Defender SmartScreen overview
Documents warning pages for suspicious, phishing, malicious, unknown-reputation, downloaded-file, application, certificate, and site-reputation risks.
Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| Security warning | Choose security warning when the system has a security-risk signal and proceeding could expose credentials, personal data, payment data, device integrity, account access, or organization assets. | The warning appears before the risky navigation, submission, download open, file preview, install, or sensitive account action completes. | Supports suspicious-site, phishing, malware, file-reputation, app-reputation, and certificate-based warning pages. |
Evidence Role
This source is treated as platform-guideline evidence. Use it to validate the decision rules above, not as a visual style reference.
Publisher: Microsoft. Last checked: .