59202: Security Guardrail Violation

The requested Rule or Setting configuration was rejected because it would violate a security policy enforced by the Webhooks Configuration API. This error is returned when creating or updating a Rule.

• The default (catch-all) Rule — the one with no matchType/value restricting it to a specific URL pattern — was configured to use Basic Authentication. Because a default rule matches every unmatched webhook URL, Basic Authentication credentials on it would be sent broadly, risking credential exposure.

• If Basic Authentication is required, scope it to a more specific Rule (an EXACT_MATCH or prefix match) rather than the default rule.
• Use OAuth 2.0 or Digest authentication on the default Rule instead of Basic Authentication.