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How do you secure a Web API?

Entry ASP.NET Web API
Quick Answer Secure Web API: use JWT or OAuth2 for authentication. Enforce HTTPS. Apply [Authorize] to protect endpoints. Use CORS to restrict origins. Validate all inputs (model validation). Rate limit to prevent abuse. Return minimal error details (no stack traces). Keep dependencies updated. Use HTTPS-only cookies if using cookies. Apply principle of least privilege for service accounts and API keys.

Answer

Security techniques include:

  • JWT Bearer authentication
  • [Authorize] attributes
  • HTTPS enforcement
  • Input validation
  • Rate limiting
S
SugharaIQ Editorial Team Verified Answer

This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

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Source: SugharaIQ

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