The House passed legislation Monday aimed at stopping the federal government from mailing letters to people that include their Social Security numbers — including in envelops that have these vital numbers printed on the outside where anyone can see them.

Lawmakers passed the bill, from Rep. David Valadao, R-Calif., in an easy voice vote Monday afternoon.

House Oversight and Government Reform Committee Chairman Jason Chaffetz, R-Utah, noted that Valadao offered the bill when one of his constituents complained that her Social Security number could be seen in a letter she got from the Social Security Administration.

“It was on the outside of the envelope,” Chaffetz said on the House floor as he laughed. “Mr. Speaker, this it totally and completely unacceptable.”