Q-Day Could Arrive Before Quantum Computers Are Commercially Useful, EU Warns

In brief

• The EU's banking, insurance and markets regulators said an advanced quantum computer could undermine cryptography protecting communications, transactions, databases and blockchains.
• They warn that data captured today could be decrypted later, a tactic known as “harvest now, decrypt later.”
• The EU has recommended member states adopt a post-quantum cryptography migration strategy by the…