OVHcloud, the first global player to improve website access security with a quantum computer

Roubaix – September 23 2025 – OVHcloud, a global player and the European cloud leader, has announced that it is increasing the security of its hosted websites using quantum computing. The Group has redesigned the process of generating SSL certificates (a file used for encryption and server authentication) for its clients, using the unique properties of quantum computers to generate unpredictable random numbers.

OVHcloud, a member of the Internet Security Research Group, has long supported efforts to help developers make the web safer. As a result, hosted websites will automatically receive SSL certificates from Let’s Encrypt. These certificates now offer enhanced protection thanks to the use of quantum-generated random numbers (quantum entropy). This technology strengthens the reliability of encryption keys and ensures the confidentiality of exchanges.

Traditionally, the generation of random numbers in electronic circuits can, over time, exhibit bias and predictability, which could weaken computer security due to various factors. Quantum physics, on the other hand, can generate truly unpredictable random numbers, thanks to photon entanglement. This Quantum Random Number Generation (QRNG) technology was developed using Quandela’s quantum computer, which OVHcloud acquired. OVHcloud's patented innovation, known as the 'certifiable randomness', exemplifies the Group's R&D efforts.

“Using quantum computing to enhance the security level of encryption certificates is not only a world first technology that aims to anticipate evolving threats, but it also defines our vision of OVHcloud innovation. Innovation for freedom” said Julien Levrard, CISO OVHcloud.

OVHcloud is thus becoming the first cloud player in the world to use quantum computing in its SSL certificates to enhance the security of hosted websites. These new certificates are already being deployed and will be offered free of charge to all of the Group’s web clients. Compatible with the entire current web browser ecosystem, they help to strengthen the trusted cloud. In total, nearly five million websites hosted by OVHcloud will benefit from QRNG by the end of October 2025.

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