Quantum computing can break RSA cryptography. A sufficiently powerful quantum computer will use Shor's algorithm to easily factor large prime numbers, rendering standard public-key infrastructure (PKI), VPNs, and digital signatures useless.The primary business dangers include:
- The "Harvest Now, Decrypt Later" ThreatThe danger is not just theoretical or reserved for the future. Malicious actors and nation-states are already intercepting and hoarding encrypted corporate data, waiting for the arrival of cryptographically relevant quantum computers. Any sensitive data with a long shelf-life—such as proprietary IP, medical histories, and financial records—stolen today will eventually be readable.