The banks, hospitals, and government agencies above are your customers. When their regulators mandate PQC, they will pass that requirement upstream to every SaaS vendor in their supply chain. The question is whether you have an answer ready.
Where the cryptographic exposure sits
SaaS products in LATAM use ECC across the entire stack: TLS termination at the edge (ECDHE key exchange), API authentication (ECDSA-signed JWTs), webhook payload signing (ES256), customer data encryption (ECIES or hybrid schemes with ECC key wrapping), and OAuth 2.0 flows with ECC-based client certificates. Each of these is a quantum-vulnerable surface that a regulated enterprise buyer's security team will eventually audit. The exposure is not abstract. It is in every API call, every signed token, every encrypted payload sitting in your customer's audit logs.
The supply-chain pressure arriving
Vendor risk assessments
Brazilian banks under BCB Open Finance rules already require cryptographic attestation from their technology vendors. As PQC mandates sharpen, vendor questionnaires will include specific questions about quantum-safe key exchange.
SOC 2 + ISO 27001 evolution
Both frameworks are updating their cryptographic control requirements in response to NIST PQC finalization. LATAM SaaS companies selling to regulated sectors will face audit questions about migration roadmaps as early as 2026.
Government procurement requirements
Public sector procurement in Colombia, Chile, and Brazil is beginning to reference NIST SP 800-208 and post-quantum readiness in technology RFPs. SaaS vendors without a PQC position will be excluded from these tenders.
Enterprise buyer due diligence
Large LATAM enterprises (Grupo Bancolombia, Itaú, Falabella, América Móvil) are adding cryptographic agility questions to vendor risk frameworks as part of their own regulatory compliance. A QTA gives you a defensible answer.
What a QTA delivers for this sector
A QTA scoped to your API signing surface and customer data encryption delivers: a PQC readiness statement you can share with enterprise buyers, a gap analysis against NIST SP 800-208, and a migration roadmap that fits your release cycle, before the RFP asks for it.