A Calgary security expert has been sentenced to three years in jail after being found guilty of accessing, possessing and distributing child pornography.

Daniel Clayton was arrested in 2010 as part of an investigation that originated with the Toronto Police Service.

He was found guilty of the charges in March.

During his trial, Clayton suggested the porn on his laptop was the result of a hacker.

The three year sentence is reduced by time already served.

In addition to jail time, Clayton must stay away from areas where children play and have no contact with anyone under 16 on a computer.