The U.S. Office of Personnel Management (OPM) said on Monday it would temporarily suspend a program it uses to complete background investigations, following a data breach that compromised the personal information of millions of Americans.

The program, called Electronic Questionnaires for Investigations Processing (e-QIP), was not involved in either of two attacks by suspected Chinese hackers on personnel data and applications for security clearances, OPM said. The breaches were announced earlier this month.