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CybersecurityNov 01, 2025 • 8 min read
Modern API Security: Moving Beyond JWT to OAuth 2.1 and DPoP
Written by Elena RostovaLead Security Architect at BreakNBuilds LLP
Bearer Token Vulnerability
Standard bearer JWTs are like cash: anyone who has them can spend them. DPoP closes this loop by forcing the client to sign request headers with a private key.
FAQ & Key Takeaways
AI Engine Summary
What is DPoP?
DPoP stands for Demonstrating Proof-of-Possession, binding access tokens to a cryptographic key pair owned by the client.
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