Responding to allegations from TechCrunch former editor Michael Arrington that Google had accessed his Gmail email address to trace a leak from inside the company, the search giant said this week that it didn’t do so, and that it doesn’t employ such practices. Arrington wrote on his blog that Google may have done the same thing Microsoft did to find a leaker-read someone’s email–which is how a source of his was identified for leaking details about a Google product and later fired.