A former executive with US defense contractor L3Harris has pleaded guilty to selling digital spy tools to a Russian broker, the Justice Department announced Wednesday.In a statement, the department said Peter Williams, a 39-year-old Australian, pleaded to two counts of theft of trade secrets. It said he took "at least eight sensitive and protected cyber-exploit components" from his job and sold them to "a Russian cyber-tools broker" that publicly claims to resell cyber spying tools to customers