They have doxed FOIA applicants. See article below.

Washington (CNN) A federal government transparency website made public dozens, if not hundreds, of Social Security numbers and other personal information in a design error during a system upgrade.

The error, on a Freedom of Information Act request portal, was fixed after CNN alerted the government to the situation. For weeks prior, however, individuals' sensitive personal information was available on the public-facing database unbeknownst to them or the government.

Here's something pretty interesting. EPA does IT for FOIA:

"The FOIA clearinghouse is maintained by Environmental Protection Agency, which provides the IT resources to keep it up. It is up to each government agency that uses the portal, however, to take the care to input the information correctly"

https://www.cnn.com/2018/09/03/politics/foia-revealed-social-security-numbers/index.html