Direct answer

What is the biggest mistake teams make when implementing post-quantum security?

The biggest mistake is treating PQC as a security team's side project rather than recognizing it as a cross-cutting concern that touches every layer of application development. This leads to massive integration risks, scope creep, and timeline/budget overruns of 30-50% or more, as it requires upgrading backend services, microservices, and client-side logic in sync.

28 Feb 2026
custom_software

Short answer

The biggest mistake is treating PQC as a security team's side project rather than recognizing it as a cross-cutting concern that touches every layer of application development. This leads to massive integration risks, scope creep, and timeline/budget overruns of 30-50% or more, as it requires upgrading backend services, microservices, and client-side logic in sync.

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What is the biggest mistake teams make when implementing post-quantum security?

The biggest mistake is treating PQC as a security team's side project rather than recognizing it as a cross-cutting concern that touches every layer of application development. This leads to massive integration risks, scope creep, and timeline/budget overruns of 30-50% or more, as it requires upgrading backend services, microservices, and client-side logic in sync.

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