Security Insights

Quantum, cryptography and Q Day: are we ready?

Security Insights

Show Notes

Soon, quantum computers will be able to decrypt "production grade" encryption, putting both privacy and security at risk. But how close is "Q Day", and is a cryptographically relevant quantum computer a realistic prospect? Is it something malicious actors will be able to obtain, and if so, how would they use it and what threat does that pose to confidentiality of our files, as well as our communications? Our guest today is Moona Ederveen, an author, speaker and consultant who has been studying the impact of quantum computing on security. Here, she discusses the scale of the threat, the steps organisations need to take to mitigate it, and why cybersecurity teams need to act with urgency. Listeners can also access the Post-Quantum Preparedness Framework mentions in the episode here.

More from Security Insights

Oct 15, 2026

Businesses are capturing, and storing, ever larger volumes of data. These data sources are vital for decision making, and of course for AI. But they can pose security risks. Data can be corrupt, contain malware, or even just be wrong. And as enterprises connect more systems to shared data -- in data warehouses or datalakes -- any threat can quickly spread right across the business. But, as our guest for this episide argues, often security isn’t even in the room when it comes to discussions about data management. Even so, security expertise is vital, if we are to ensure that new data projects do not create new vulnerabilities, epecially in a data driven enterprise. Our guest is is Danielle Kinsella, senior direct at Gigamon. Interview by Stephen Pritchard.

Oct 1, 2026

In the face of growing cyber threats, the obvious step is to ask for more budget. But does spending more on security tools always improve an organisation’s defences? Are there more effective ways for cybersecurity teams to marshal their resources? This is where security frameworks come in. Standards such as TOGAF, Open FAIR, zero trust architecture and an upcoming framework on security roles from the Open Group are all vital tools to help CISOs define what they need to defend, and how. Our guest is John Lindford, Forum Director of The Open Group’s Security Portfolio.

Sep 17, 2026

A recent survey suggests that, in the UK at least, boards overestimate their organisations' ability to withstand a cyber attack. And they overstate their ability to recover from an incident, and restore even to minimum viable operations. What does that mean for security, and does it increase risk? And will pressure, from regulators, law makers, and even shareholders and investors, force boards to take cyber resilience more seriously, and view it at least on par with business continuity? Our guests are Paul Cragg, CTO at NormCyber, and Richard Beeston, Chief Operating Officer at Digital Space.

Sep 3, 2026

Recent incidents show the risks AI can pose to cybersecurity. At the same time, the security industry is putting a lot of store on AI as a way to bolster defences. So is AI a threat, or an answer to our security challenges? As the CEO of a business supplying security services to global organisations, our guest is well placed to discuss how CISOs view the risks, and benefits of artificial intelligence. And, as Raluca Saceanu, CEO of Smarttech247 puts it, there are those who are "all in" on AI, and those who view it with distrust. Interview by Stephen Pritchard.

Aug 20, 2026

Physical and cyber security are separate disciplines. But are they converging, and what can they learn from each other? Do changes in the threat landscape, from geopolitics to AI, mean physical and cyber teams need to work more closely together? And can a more joined-up approach to security improve operational resilience? Our guest is Cohesity's James Blake.

See all episodes →