Quantum Security Awareness (Payments Edition): Payments Are Cryptography – PQC Under Millisecond SLAs

About This Event

This complimentary webcast is designed for payments security leaders who need a clear, no‑nonsense view of the quantum threat – and what to do about it now, without fluff. Co‑hosted by QSECDEF and Applied Quantum, this session cuts through generic PQC talk and focuses on what makes payments different: crypto everywhere, many independent parties, and millisecond operational envelopes that you can’t break. We focus on the real blockers in payments: interdependencies, performance budgets, and vendor/partner sequencing.

Payments are unusually crypto‑dense and time‑dense: a single authorization spans parties that don’t share one change calendar (merchant → PSP/gateway → processor → network/switch → issuer → clearing/settlement), and the chain must complete inside strict timeout/retry behavior. We’ll use an interbank cryptography stack mapping as a concrete illustration of how many trust boundaries exist before you even introduce PQC – and why “just upgrade the algorithm” is not a plan. 

In payments, quantum readiness is an interoperability and sequencing problem as much as a cryptography problem. That’s why governance levers matter: PCI DSS v4.0 Req. 12.3.3 (documenting and reviewing cipher suites and protocols) is a practical forcing function for building crypto inventory discipline and making “crypto agility” real rather than aspirational.

We’ll translate the most useful real-world lessons into payments-specific decisions – drawing on central-bank experimentation from BIS Project Leap Phase 1 (hybrid encryption for payment-message confidentiality) and Phase 2 (PQC signatures in a TARGET2 context), where performance, interoperability, crypto-agility, and vendor dependencies were tested in practice.

We’ll also treat integrity as first‑class, not an afterthought. Payments rely on long‑lived certificates, signed artifacts, and device identities that underpin authorization evidence and operational trust. That’s where the TNFL (“trust now, forge later”) lens becomes operational: it helps you prioritize signature/PKI trust anchors – not only confidentiality flows.

Most importantly, this will be a practical, rails‑tested discussion. We’ll cover the real engineering lessons from BIS Project Leap and Leap 2 – including what these experiments teach us about compatibility, performance budgets, message sizes, and multi‑component change.

By the end, you should have a clear way to identify the 1–2 most “pilotable” payment corridors for hybrid/PQC work without breaking SLAs, and a smarter structure for vendor/partner conversations grounded in what real payment infrastructure projects encountered, and industry drivers like PCI DSS 12.3.3, FS‑ISAC guidance, and G7 financial-sector coordination efforts.

Format: Free live webcast (multiple sessions available)

Duration: Awareness-level briefing – 1.5 hours

Cost: Free

What Will You Learn

• Where PQC migration actually fails first in payments: latency, retries, MTU/message size, HSM throughput, and certificate-chain realities.
• How to use BIS Project Leap Phases 1–2 as a practical benchmark for what “PQC in real rails” demands (not a lab PoC).
• How to prioritize TNFL-sensitive trust anchors (signing keys, PKI roots, device identity) alongside confidentiality flows.
• What “crypto agility” means operationally in payment platforms—and why hybrid often requires system evolution.
• How to turn PCI/FS‑ISAC/G7 signals into concrete partner/vendor conversations and sequencing decisions.

Who Should Attend

CISOs and security/crypto leads in issuers, acquirers, processors, PSPs/gateways, networks/switches, and payments infrastructure providers.

Prerequisites

General awareness of quantum security risk, PQC basics, and typical migration challenges is helpful – but not required. For a primer-style session, attendees may optionally join the introductory briefings we regularly provide: see Applied Quantum Events. 

This Session

Wednesday, 23 Apr 2026

• Time: 7:00 PM CEST | 1:00 PM EDT | 6:00 PM BST | 9:00 PM GST | 10:30 PM IST | 10:00 AM PDT

All events in the series: Quantum Security Awareness – Industry Editions

Registration

This event is co-hosted by Applied Quantum and QSECDEF. Registration is free. RSVP Below.

Please register below using your email address. Within minutes, you will receive a confirmation email containing a calendar invite and the unique Zoom link for the day. If the email does not arrive shortly, please check your junk or spam folder, or contact us at admin@appliedquantum.com.

No fluff. No jargon. Just the clarity and next steps security leaders need. For questions or group registrations, contact Applied Quantum.