Ex-NSA Contractor Who Stole Top Secret Documents Is Sentenced To 9 Years In Prison

A former National Security Agency contractor who pleaded guilty to stealing vast troves of classified material over the course of two decades has been sentenced to nine years in prison.

Harold Martin III, 54, apologized before U.S. District Judge Richard Bennett handed down the sentence on Friday.

"My methods were wrong, illegal and highly questionable," Martin told the court in Baltimore, according to The Associated Press.

Earlier this year, he pleaded guilty to "willful retention of national defense information," a crime that carries a punishment of anywhere from no jail time to a maximum prison sentence of 10 years. His plea agreement called for a sentence of nine years in prison.

Martin, who at the time worked for Booz Allen Hamilton, began to accumulate classified documents in his vehicle and at his home in Glen Burnie, Md., in the late 1990s. The Navy veteran held a Top Secret security clearance. He was arrested in August 2016, and the documents were found when the FBI searched his residence.

Prosecutors have described his conduct as "breathtaking in its longevity and scale."