Designed to cripple Iran’s nuclear enrichment program, the 2010 Stuxnet worm set a cybersecurity precedent as the first time a nation escalated its activities from strategic espionage to sabotage in cyberspace. Now, a new discovery suggests such operations were in full swing years before Stuxnet came to light. Researchers from SentinelOne have tracked down samples of a malware framework that was active in 2005 and targeted engineering modeling software by corrupting high-precision floating-point arithmetic operations. One component of the framework, a kernel driver called fast16.sys, is briefly mentioned in the 2017 Shadow Brokers leak of documents covering exploits and tools used by US Nati...