The transition to Post-Quantum Cryptography (PQC) introduces significantly larger cryptographic signatures, such as ML-DSA, which will force DNS responses to exceed standard UDP packet limits. This architectural shift will cause frequent fallbacks to TCP, introducing latency spikes and silent timeouts that pose a severe operational risk to automated, high-volume systems like agentic AI workflows. Furthermore, adversaries are already conducting 'Harvest now, decrypt later' attacks, underscoring the immediate need for organizations to map and secure their DNS and DNSSEC configurations across distributed cloud environments.
Network Architecture
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Post-Quantum Cryptography Is Coming, but Your DNS Might Not Be Ready