Harvest Now, Decrypt Later: The Quantum Threat You Can’t Ignore

Quantum computing isn’t a future problem anymore – it’s a present-day risk hiding in plain sight. While organisations focus on AI and immediate threats, adversaries are already collecting encrypted data today, betting on the ability to break it tomorrow.

In this episode of CXO Secrets, David McClelland sits down with Patty Voight, Executive Managing Director, CISO and Head of Technology Risk at Webster Bank, to explore why quantum risk demands attention now. From “harvest now, decrypt later” strategies to the fragility of digital trust, they unpack what’s really at stake for organisations holding long-lived, high-value data.

Patty shares how security leaders must shift from reactive defence to proactive resilience – embedding security into business growth, prioritising identity governance, and preparing for a post-quantum world without waiting for Q-Day. The conversation highlights why trust, not technology, is the true currency of modern cybersecurity.

🎧 Topics include:

• The real meaning of “harvest now, decrypt later”
• Why quantum risk is already a business issue, not a future one
• Protecting long-term, high-value data in a post-quantum world
• The growing challenge of identity governance and non-human identities
• How CISOs can enable growth while strengthening security
• Preparing for quantum without overreacting to the hype