Stuxnet 0.5: The sabotage worm is older than previously thought Further infection vectors were incorporated into Stuxnet over time Source: Symantec The first Stuxnet worm was in operation as early as 2007, not just, as previously believed, since 2009. Security firm Symantec found the older variant during a routine check of its malware database and then analysed the version as Stuxnet 0.5. The disc