LGT advances post-quantum migration with banking pilot

Post-quantum migration can become unmanageable when enterprises treat every cryptographic dependency as a single replacement project. As organizations move from quantum awareness to implementation, the transition reaches across applications, infrastructure and suppliers, making coordination as important as algorithm selection.

At LGT Financial Services AG, quantum safety entered formal risk discussions in 2022, when the topic was raised at the firm’s annual risk and cyber risk management meeting. The company later created a competence center to connect security operations, architecture, public key infrastructure, application owners, vendors and risk stakeholders, according to Christian Pfister (pictured, right), team leader, IT security operations, and lead for LGT’s Quantum Safe Competence Center.

“Quantum safety is a resilience and risk management issue,” he said. “The key question for leadership was straightforward: Which information must remain confidential long enough that it may be exposed to a future cryptographic break? We then explained that waiting until there is a cryptographically relevant quantum computer would leave too little time to identify dependencies, upgrade product, coordinate suppliers and safely migrate.”