Singapore – The Monetary Authority of Singapore (MAS), together with DBS, HSBC, OCBC, UOB, SPTel and SpeQtral, has completed a proof-of-concept (PoC) sandbox assessing the use of Quantum Key Distribution (QKD) to secure communications in the financial sector.
The sandbox enabled participating institutions to test and evaluate the practical applications of QKD technology for protecting sensitive data. QKD is a quantum-safe communication method that uses the principles of quantum physics to generate and exchange encryption keys in a way that makes any attempted interception detectable.
A QKD solution provided by SPTel and SpeQtral was deployed to validate its capability in securing data transfers. The exercise also offered insights into the strengths and limitations of QKD, supporting informed decisions on the sector’s future quantum-safe strategies.
“The QKD sandbox marks a significant step in exploring the potential use of quantum-safe solutions within IT systems and networks within the financial sector,” Vincent Loy, assistant managing director (technology) and chief technology officer at MAS, stated.
He further added, “The insights gained have enhanced our understanding of QKD technology, helped explore possible ways to strengthen cyber resilience of Singapore’s financial sector, and uplifted the capabilities of financial institutions to cybersecurity threats posed by quantum computing.”
A technical report has been published outlining key findings from the project, which observed that QKD has the potential to strengthen the security of financial communication networks, such as connections between data centres and operating premises.
It also highlighted the need for the telecommunications sector and QKD providers to improve security assurance through tamper-resistant standards and multi-layer safeguards. Furthermore, the report identified the importance of achieving interoperability between different QKD providers to enable seamless integration into the diverse IT environments of financial institutions.
“We now have a clearer understanding of the security standards and implementation challenges that need to be addressed to build a robust quantum strategy,” Eugene Huang, group chief information officer at DBS, explained.
“With cybersecurity threats becoming increasingly sophisticated, we are committed to further collaboration with MAS and the industry to ensure that banking services remain safe, secure, and resilient for our customers.”
The report also detailed advanced testing scenarios demonstrating QKD’s effectiveness in hybrid cryptographic models. Furthermore, operational trials tested QKD’s ability to handle practical security challenges.
The system was able to detect and block unauthorised access attempts, prevent tampered decryption requests, and withstand simulated eavesdropping attacks. These outcomes highlighted QKD’s role in strengthening cyber resilience for critical financial operations, particularly where the protection of sensitive transaction data is paramount.
Lum Chune Yang, co-founder and chief executive officer of SpeQtral, mentioned that this proof-of-concept with QKD brings significant progress in adopting quantum security for Singapore’s financial sector.
“Globally, QKD is already being used today by banks concerned about security and quantum threats. We showed how it can be quickly deployed into existing infrastructure to enable quantum-safe communication,” Lum explained.
The project marks a step towards bolstering Singapore’s cyber resilience and preparing the financial sector to address potential risks from future quantum computing threats.
