The U.S. Army National Guard experienced their own personnel data breach, they announced Friday. The data breach includes current and former soldiers' names, full Social Security numbers, dates of birth and home addresses.

The announcement comes in the shadow of the massive Office of Personnel Management data breach suffered by 20 million government employees announced Thursday.

"All current and former Army National Guard members since 2004 could be affected by this breach because files containing personal information was inadvertently transferred to a non-DoD-accredited data center by a contract employee," said Maj. Earl Brown, a spokesman for the National Guard Bureau.

"The National Guard Bureau takes the control of personal information very seriously," said Brown, saying that they chose to reveal the breach "out of an abundance of caution."

With no apparent irony intended, the National Guard has set up a toll-free call center and web page for members to learn how to check credit reports and guard against identity theft.

Brown said they do not believe the guardsmen's information will be used unlawfully. "This was not a hacking incident," he said.