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Last updated: April 29, 2026
Deep links let other apps invoke yours. Misimplemented, they become attack vectors: open phishing pages, leak tokens, hijack flows.
Deep links let other apps invoke yours. Misimplemented, they become attack vectors: open phishing pages, leak tokens, hijack flows.
Two patterns
- Custom URL schemes (myapp://login) — any app can register; squatter wins. Insecure.
- Universal Links (iOS) / App Links (Android) — domain-verified via well-known file. Only your app handles the URL.
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