A former Equifax executive who sold stock a week and a half before the company announced a huge data breach was sentenced Thursday to four months in federal prison for insider trading. Jun Ying, former chief information officer of Equifax's U.S. Information Solutions, pleaded guilty in March. His prison time is to be followed by a year of supervised release, and he was also ordered to pay about $117,000 in restitution and a $55,000 fine.