post-quantum cryptography
Post-quantum cryptography, or PQC, refers to cryptographic algorithms that are believed to be secure against attacks by both classical and quantum computers. These new algorithms are designed to replace current cryptographic standards that could be broken by large-scale quantum computers.
Why it matters
PQC matters because future quantum computers pose a significant threat to the security of current encryption methods. This is critical for protecting sensitive data, financial transactions, and digital infrastructure. Developers working on secure systems must plan for this transition.
How it works
PQC works by using mathematical problems that are currently intractable for even the most powerful quantum computers to solve. These problems are different from those used in today's cryptography, such as factoring large numbers, which quantum computers are expected to solve efficiently. Examples include lattice-based cryptography, code-based cryptography, and hash-based cryptography.
What's happening now
Governments and major tech companies are accelerating efforts to adopt PQC. The US government, for example, has issued an executive order to speed up the move away from quantum-vulnerable cryptography due to national security concerns [1]. Companies like Meta are developing frameworks and strategies to manage this complex migration process, introducing concepts like PQC Migration Levels to guide organizations [2].
Auto-generated from Kapyn's news stream · grounded in 2 sources · updated Jun 24, 2026