Monitor for Unsigned or Invalid Webhook Calls to Your API
Harden your integrations — detect incoming webhooks with missing or invalid signatures and alert security to possible spoofing attempts.
- 1
Receive the Calls
Add a
Webhooknode capturing inbound requests with their signature headers. - 2
Verify the Signature
Add a
Codenode validating the HMAC signature against the shared secret. - 3
Flag Invalid Calls
Add an
IFnode continuing when a signature is missing or fails verification. - 4
Alert Security
Add a
Slacknode reporting the source and details of the invalid call. - 5
Activate and Test
Activate the workflow and send a request with a bad signature. Confirm it's flagged.
Frequently asked questions
Should invalid calls be rejected?
Reject them at the gateway, and use this monitor to detect patterns of spoofing attempts.
What about a rotated secret?
Support both old and new secrets during rotation so valid calls aren't wrongly flagged.
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