SecurityWeek’s Cyber Insights 2026 gathers expert views warning that powerful quantum computers threaten current public-key encryption and that AI could accelerate quantum development and automate its use. The report urges urgent migration to post-quantum cryptography and preparation for a potential convergence of quantum computing and AGI that could enable fast, autonomous cyberattacks and confer massive advantages to first movers. #QDay #PQC #HNDL #ScatteredSpider #ShorsAlgorithm
Keypoints
- Quantum computers running Shor’s algorithm will eventually break current public-key cryptography like RSA and ECC.
- Adversaries are conducting harvest-now, decrypt-later (HNDL) campaigns to steal encrypted data for future quantum decryption.
- AI could shorten the timeline to a cryptographically relevant quantum computer (Q-Day) by improving error correction and automating development.
- The convergence of quantum computing and AGI risks autonomous, high-speed attacks that outpace human response and favor first movers.
- Urgent migration to post-quantum cryptography, zero-trust architectures, and quantum-enhanced defenses is necessary to mitigate future threats.