India, Oct. 24 -- The FBI arrested Ian A. Brinksman, a Washington, DC-based government contractor, on Friday for allegedly transmitting classified national defense information to a romantic partner. The partner later published material online, the US Department of Justice said.

Brinksman, 42, was arrested after an FBI search of his residence and charged through a criminal complaint with unlawfully transmitting national defense information.

The charges alleged that he used his position of trust and access to sensitive government systems to obtain and share classified material.

According to the complaint, Brinksman held a Top Secret security clearance with Sensitive Compartmented Information (SCI) access while working for a US government...