A top administrator with Washington’s health insurance exchange apologized to House members on Wednesday for the data breach that resulted in the disclosure of personal information to thousands of users, including members of Congress.

The leak was the result of human error, Mila Kofman, executive director of the District of Columbia Health Benefit Exchange Authority, told a joint session of two House Oversight subcommittees.

She said a server was incorrectly configured in mid-2018 when they installed the internal communications program Slack. That faulty configuration allowed an unauthorized individual to access the server and steal two reports containing personal information of “56,415 current and past customers including members of Congress, their families, and staff.”

DC HEALTH LINK DATA BREACH BLAMED ON BASIC HUMAN ERROR

Some of that information was later offered up for sale in an online forum. The issue first came to public attention when members of the House of Representatives and the Senate were informed that they and their staffers may have been affected.

Kofman repeatedly apologized for the mistake, but she criticized the agency’s reaction once the breach was discovered in early March. She said outside experts and the FBI Cyber ​​Security Task Force were brought in to quickly identify and shut down the security flaw. And those potentially impacted by the leak were immediately offered identity theft and credit monitoring protection, he said.

“We will not fail in our response,” Kofman told the committee.

The District of Columbia Health Benefit Exchange Authority Executive Director Mila Kofman tests before a committee on April 19, 2023, on Capitol Hill in Washington DC A data breach at the company released personal information on members of the Congress. (AP Photo/Manuel Balce Ceneta)

Rep. Nancy Mace, RS. C. the agency’s reaction was critical, telling Kofman, “from a crisis standpoint, the response was excellent.”

However, Mace took exception to what she called an “unacceptable” lack of detail on who exactly was responsible and whether that employee or contractor had been punished or fired.

“We want to know who is responsible and we want to know how those responsible are being held accountable,” she said.

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Mace also criticized a report by the cyber-security firm Mandient, which helped identify the security flaw — saying it was thin on crucial details. Mace called the report “pretty lame and uninformed.”

Rep. Bryan Steil, R-Wis., wondered if the seven-page report was some sort of early draft, calling it “wildly underwhelming if that’s the final report.”

And Rep. Barry Loudermilk, R-Ga., a former IT professional, said Kofman’s entire testimony shed very little light on when exactly the data theft took place or who exactly was responsible.

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“I have become more confused sitting here today as to what happened. I thought this would be clarifying,” he said.

The hearing comes in the larger context of a sweeping effort by the Republican-held House of Representatives to increase their oversight on the government of the District of Columbia. Congress has already overturned a rewrite of the DC criminal code — which passed the Senate with significant Democratic support.

The House on Wednesday also passed a resolution to overturn a police reform law passed by the DC Council last year, although that move has murkier prospects in the Senate and President Joe Biden has already said he would veto it, if necessary.