Two key House lawmakers are seeking answers from the Internal Revenue Service (IRS) about whether any of the agency's systems were compromised as part of a massive cyberattack.

"We believe that it is important to provide taxpayers with a full understanding of the extent of the SolarWinds Orion compromise to maintain confidence in the federal tax system," Reps. Bill Pascrell (D-N.J.) and Mike Kelly (R-Pa.) — the chairman and ranking member, respectively, of the House Ways and Means Committee's oversight subcommittee — wrote in a letter Friday to IRS Commissioner Charles Rettig.

The letters from Pascrell and Kelly come after the leaders of the Senate Finance Committee on Thursday pressed the IRS for a briefing about whether any taxpayer information was compromised in the SolarWinds hack.

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