GAO Warns That US Unpreparedness for Quantum Computers Could Devastate the Economy

A new federal report warns that the development of Cryptographically Relevant Quantum Computers (CRqcs) capable of breaking nearly all encryption could prove catastrophic for the US economy and national security. The analysis, recently released by the US Government Accountability Office (GAO), amplifies ongoing warnings from cybersecurity and technology experts regarding 'Q-Day'—a hypothetical scenario where quantum computers are weaponized to crack countless passwords and dismantle encryption systems, triggering a massive wave of financial crimes.

Unlike conventional computers that process data in bits with a binary value of zero or one, quantum computers utilize qubits, a two-state unit that allows them to process digits simultaneously. While this monumental computing power drastically accelerates scientific and medical research, the GAO report highlights its severe cybersecurity implications.

In response to these vulnerabilities, the non-partisan federal watchdog issued 89 recommendations across more than 20 federal agencies, urging them to catalog potentially vulnerable cryptography and identify funding for post-quantum solutions. While 12 government agencies accepted the GAO's recommendations, one agency rejected several of them, and the US Department of the Interior failed to respond entirely. Despite this, the GAO maintains that all of its recommendations remain fully warranted.

Offering a minor silver lining, the evaluation notes that experts consider the probability of a CRQC being built within the next decade to be low. However, significant risks remain, as malicious actors, hostile governments, and rogue organizations are believed to be harvesting encrypted data today in anticipation of future quantum decryption capabilities. As the report emphasizes, compromising even a small volume of sensitive information could severely disrupt federal operations.

Addressing similar concerns, the World Economic Forum highlighted lattice-based cryptography in its Top 10 Emerging Technologies Report for 2026. This defensive technology protects data by utilizing complex mathematical grids, or lattices, which are designed to remain unbreakable even for advanced quantum computers.