Quantum computing poses gradual encryption threat, not immediate crisis
Experts estimate a 50% chance that quantum computers will break current encryption by 2040, but the transition to quantum-resistant cryptography can follow a measured, phased approach rather than requiring emergency action.
According to MIT Technology Review, quantum computers pose a measurable but not imminent threat to current encryption methods. A 2024 survey of quantum computing experts estimated a 50-50 probability that a quantum computer could break a 2048-bit RSA key within 24 hours by 2040. The immediate concern for many organizations is the "harvest now, decrypt later" scenario, where adversaries collect encrypted data today to decrypt after quantum capabilities emerge.
The U.S. government has set timelines for National Security Systems to adopt post-quantum cryptography algorithms standardized by NIST and selected by the National Security Agency, with implementation beginning in January 2027 and full adoption targeted by 2035. For commercial enterprises, these serve as reference points rather than mandates. Organizations can adopt a phased modernization approach, starting with visibility into where cryptography exists across their systems—from databases to code signing and software updates—and partnering with technology providers already delivering quantum-resistant infrastructure.