Quantum computing sets a deadline for today's encryption

RSA-2048: the world's digital padlock is running out of time

On June 22, 2026, the White House signed Executive Order 14412, a document with an apocalyptic-sounding name: "Protecting the Nation Against Advanced Cryptographic Attacks." Without fanfare, Washington acknowledges that quantum computing has ceased to be a laboratory promise and has become a threat with a deadline. The strategy known as "harvest now, decrypt later" —harvesting encrypted data today to decrypt it once the machine is ready— is no longer a conspiracy hypothesis, but the core of a presidential order.

Why current encryption has an expiration date

NIST, the US standards agency, has been blunt: before December 31, 2031, systems must migrate to post-quantum cryptography. The reason is called RSA-2048, the padlock that protects emails, transfers and bank accounts. It is a 617-digit number obtained by multiplying two giant primes; factoring it with a classical computer would take longer than the age of the universe. Shor's algorithm, run on a quantum machine with enough power and low noise, would reduce it to a trivial problem.

Here comes the nuance that separates serious analysis from science fiction. Qubits are unstable: they need temperatures close to absolute zero, and although the processor fits in the palm of a hand, the cooling system takes up an entire room. The most skeptical compare quantum computing to nuclear fusion: it is always fifty years away. The announcements of August 2026, however, speak of "quantum utility" and a demonstrated "quantum advantage" over classical systems. Something has shifted.

The noise that is not just technical

The underlying question goes beyond transistors. Quantum indeterminism reopens old questions about chance, causality and free will. Some argue that physics has given up explaining and only predicts; others defend hidden variables in Einstein's style. Surveys among physicists reflect the split: 15% lean toward the many-worlds interpretation, 7% toward Bohmian mechanics, and most of the rest avoid the question. Even Gödel shows up in the fray, though misquoted.

What matters is that while physicists argue, regulators have already set a date. The post-quantum transition is not a bet on the future; it is a migration with a delivery deadline. And the unsettling fact: if everything goes as planned, the first major padlock to fall will not be the hardest one, but the one everyone considered secure just a few years ago. The countdown has begun.