The Q-Day Threat
Quantum computers will eventually be able to break current encryption standards (RSA, ECC). This is known as "Q-Day".
Harvest Now, Decrypt Later
Attackers may be stealing encrypted data now, waiting for the technology to decrypt it later.
Post-Quantum Cryptography (PQC)
NIST has standardized new algorithms. Enterprises need to start inventorying their cryptographic assets and planning the migration to PQC.