Experts argue that a "quantum leap" in security is necessary to protect against the future threat of quantum computers breaking standard encryption, a scenario often referred to as "Q-Day". Key defenses involve adopting post-quantum cryptography (PQC) and quantum key distribution (QKD) to mitigate vulnerabilities like the "harvest now, decrypt later" approach used by adversaries. For more details, visit Physics Today . Making rapid quantum security leaps to keep Q-Day a myth