Lord Ravensdale (CB)

My Lords, I declare my interest as a chief engineer working for AtkinsRéalis. I shall speak to Amendment 82. In our debate on group 3, a lot of good points were made about one specific technology related to cyber: AI. However, as the noble Lord, Lord Birt, said in the debate on the previous group, quantum is the other area that needs attention as a specific technology. When I started here around seven years ago, I never thought that I would one day be talking about quantum mechanics in your Lordships’ House. I recently heard the story of Heisenberg and his discovery of the uncertainty principle, almost 100 years ago in 1927. He was out in a park late one night, after a long argument with Niels Bohr, and he saw a row of street lights. He saw a person walking in between the street lights late at night. He would see them go past one light—you would be able to observe them—and then they would disappear into the darkness and they would then reappear at the next light. He realised that he could use that analogy for the behaviour of the electron: as it was being measured, it was there as a particle, but, when it was not being measured, it had to be considered probabilistically because you do not know where it is. In the same way, with a quantum computer, the value of the qubit, as it is called, is locked in only when it interacts with a measurement device. This extraordinary powerful technology is now emerging. As an example, the Willow chip, which has recently been developed by Google, completed a benchmark calculation in five minutes. It would have taken the fastest classical computer in the world 10 septillion years—that is 10 with 24 zeros, I believe—to complete it. According to the Parliamentary Office of Science and Technology and the NCSC, in less than 10 years—perhaps even sooner than that—we could have a cryptographically relevant quantum computer that uses Shor’s algorithm to decrypt all communications that rely on the RSA algorithm on which we have relied for decades for all of our bank transactions, state-level communications and so on. This is an area of technology that is moving extremely quickly, and it is not just one about which we will have to worry at some point in the future. So-called “harvest now, decrypt later” attacks could be used to decrypt sensitive information in the future. That brings me to the amendment. It is quite a simple, straightforward one, which goes forward from the discussions on how, given the changing nature of these technologies, it is perhaps not appropriate to have specific technologies and timelines in the Bill. However, as the Minister has already brought out, the statement of strategic priorities is a powerful tool to ensure national join-up, including across those regulators within the remit of the Bill. We have 12 regulators and each one could approach quantum crypto—so-called post-quantum cryptography—differently. There will be huge benefits in really ensuring that regulators work from the same national signal rather than inventing their own PQC expectations individually. That would also allow them, if it can be brought out in the statement of strategic priorities, to plan their inspections, guidance, skills and capacity around the NCSC timelines, which is a plan ranging from 2028 discovery and initial plan through to 2035 when post-quantum crypto implementation is completed. That will also help with all those newly in-scope firms that will be coming within the remits of this legislation, giving the regulators a legitimate basis to raise post-quantum crypto with those new organisations early on. I read back the Minister’s remarks at Second Reading, when she said that quantum crypto “would be considered as part of that requirement by regulated entities, but would not necessarily be singled out as a specific technology in the regulation so that we keep these regulations up to date and matched to the cyber risks that individual entities face”.—[Official Report, 14/7/26; col. 622.] I believe that this amendment would help strengthen and deliver exactly that. With that, I look forward to hearing from the Minister on her thoughts about this approach.