Urgency of Transitioning to Post-Quantum Cryptography Highlighted by New Open-Source Tool

The video addresses the urgency of transitioning to post-quantum cryptography due to the emerging threat of 'harvest now, decrypt later' (HNDL) attacks, where adversaries collect encrypted data today to decrypt it later using quantum computers. Anurag Swarnim Yadav, co-founder and CTO of Qubit AC and a Black Hat USA 2026 Arsenal presenter, highlights that sensitive data like health records, financial information, and intellectual property are already at risk. He introduces AC Scanner, a free open-source tool designed to inventory and prioritize quantum-vulnerable cryptographic infrastructure by scanning TLS endpoints and SSH services in a single pass. The tool maps cryptographic exposure from discovery to a dashboard, serving as an initial defense against HNDL. Yadav developed the tool after receiving Facebook scholarships to attend Black Hat in 2018 and 2019, emphasizing its community-driven improvement through feedback. The presentation underscores that quantum-resistant cryptography must be adopted proactively before quantum computers become widely available.