Jeffrey Paul Delisle, a  naval officer,  is alleged to have disclosed a vast  trove of classified information to Russian agents on a scale comparable to the  alleged handover to WikiLeaks of  United States military and diplomatic reports  by US Army private Bradley Manning.

Much of the information allegedly sold to the Russians  was  more highly  classified than the disclosures attributed to private Manning, and included   signals intelligence collected by the ''Five Eyes'' intelligence community of  the United States, United Kingdom, Canada, Australia and New Zealand.