Decades-old pre-Stuxnet cyber sabotage tool breaks cover, NSA listed it as 'nothing to see here' — fast16 targeted nuclear reactors, dam design, and other high-precision civil engineering software years before Stuxnet broke cover

Sentinel Labs uncovered fast16, a mid-2000s Windows sabotage platform that spread as a worm with a kernel driver.

The malware checked for security tools and then quietly introduced tiny, repeatable calculation errors in precision software.

Targets included engineering and industrial modeling tools used for reactor, structural, and hydrodynamic simulations.

The finding suggests cyber sabotage aimed at safety-critical calculations existed at least five years before Stuxnet became public.