5 Ways Quantum and AI Will Rewrite the Rules of Cyberattacks

In a new byline for Security Magazine, Quantum XChange CEO Eddy Zervigon argues that most security executives are preparing for the wrong quantum threat. The focus on data decryption misses a far larger risk: cryptographically-relevant quantum computers (CRQCs) can break the trust mechanisms that every modern digital system depends on to verify identity, authenticate users, and validate information.

Zervigon lays out five attacks security leaders should expect once quantum and AI combine. Attackers can derive private keys from public certificates to forge legitimate-looking identities at scale, turning trusted systems like software updates, APIs, and device certificates into attack vectors. They can corrupt data integrity while systems appear to run normally, alter financial transactions and industrial sensors mid-process, and manipulate the security logs and telemetry defenders rely on to detect a breach.

AI raises the stakes by identifying high-value targets, prioritizing the trust relationships worth exploiting, and running these attacks at machine speed across entire industries.

The piece closes with five steps leaders should take now: prioritize signing infrastructure alongside encryption, build for crypto-agility, extend post-quantum requirements across the supply chain, add independent integrity verification, and address post-quantum authentication at the network layer. The companies best prepared for the post-quantum era won’t be the ones that only protect data. They’ll be the ones that rebuild the trust infrastructure modern business runs on.

Read the full article on Security Magazine.