CISA and international partners issue post-quantum vendor procurement guidance

What happened.The Cybersecurity and Infrastructure Security Agency and allied intelligence partners published a 31-question procurement framework evaluating vendor post-quantum readiness.
Why it matters.Modern enterprise software architectures depend on third-party SaaS platforms, cloud infrastructure, and appliance firmware for encryption. When external vendors fail to migrate away from public-key algorithms, harvest-now-decrypt-later attacks threaten long-term corporate confidentiality. Chief information security officers should integrate the 31 questions into vendor procurement evaluations. Procurement leads should reject supplier contracts that classify post-quantum algorithms as premium add-ons.
The technical specifications:
- Agency collaboration: CISA, the National Security Agency, and Australia's Cyber Security Centre co-authored the joint guidance for enterprise leadership.
- Framework structure: The guidance organizes 31 practical questions across five operational stages: Locate, Assess, Triage, Implement, and Communicate.
- Cryptographic visibility: Organizations must require third-party suppliers to maintain a Cryptographic Bill of Materials identifying all embedded algorithms.
- Hardware constraints: The checklist asks vendors whether cryptographic implementations are hardcoded in ways that prevent firmware algorithm upgrades.
- Licensing scrutiny: Procurement teams are instructed to verify that vendors include post-quantum security updates in baseline licenses without extra fees.