Quantum is almost here: Are you and your systems ready?
Quantum computing isn't a tomorrow problem. McKinsey warns: your encryption is already obsolete.
Why it matters
Quantum computing poses an existential cybersecurity threat to enterprises. This McKinsey brief addresses post-quantum cryptography adoption and infrastructure hardening strategies that leaders must implement now to protect sensitive data and IP from future decryption attacks.
The key facts
8 to knowPost-quantum cryptography readiness emerging as critical enterprise risk
Data harvested today vulnerable to decryption once quantum scales
McKinsey positioning quantum threat as urgent boardroom/risk conversation
Focus on securing data, intellectual property, and digital infrastructure resilience
McKinsey positions quantum as 'biggest cyberthreat in history'
Focuses on data security, IP protection, and infrastructure future-proofing
Published April 2026 (timing suggests near-term urgency)
Targets risk mitigation and digital resilience strategy
Go to the source
McKinsey Insightsmckinsey.com
Publisher excerpt: The biggest cyberthreat in history is already a reality. Here’s an effective approach for securing data and intellectual property, future-proofing digital infrastructures, and mitigating risk.