Disgruntled ex-employees seem to think they can cover their tracks by logging into their former employers from restaurant Wi-Fi networks. Two weeks ago a former IT staffer at the U.S. subsidiary of Japanese drugmaker Shionogi pleaded guilty to similar charges.

McLane Advanced Technologies sells supply chain management and IT services to the U.S. Department of Defense, state and local governments and large retailers such as . The company did not return messages seeking comment.

The IDG News Service