Representative Jim Jordan, an Ohio Republican and ranked member of the House Oversight Committee, speaks during a hearing with Michael Cohen, former personal attorney for US President Donald Trump, not pictured, in Washington, DC, USA, Wednesday, 27. February 2019.
Andrew Harrer | Bloomberg | Getty Images
Republicans in the US House Committee on Supervision and Reform on Thursday opened a formal investigation into Capital Wed's recent data breach and asked CEO Richard Fairbank and Amazon founder Jeff Bezos to arrange briefings to discuss the hacking.
In a pair of letters obtained by CNBC, ranking member Jim Jordan, North Carolina Mark Meadows and Texas congressman Michael Cloud highlighted the widespread impact of the breach and potential security implications for Amazon Web Service, the company's popular cloud storage platform.
The three known Trump allies requested staff-level briefings on the matter by August 1
"Because AWS will provide the reliable Internet connection and cloud support for the census by 2020 and potentially drive the Defense Department's Join Enterprise Defense Infrastructure cloud computing system, the Committee can carefully examine the consequences of this breach," wrote Congress members.  The letters represent the first formal visit to the democratically controlled house in relation to the Capital One hack. The company revealed on Monday that a data breach identified earlier this month exposed the personal data of about 100 million people in the United States
The nation's fifth largest credit card issuer also revealed that about 140,000 social security numbers and around 80,000 affiliated bank account numbers were also compromised. Information including names, addresses, phone numbers, credit scores and credit limits were also exposed.
Jordan, citing court documents, wrote that the information was stored on Amazon Web Services, where alleged hacker Paige Thompson worked until 2016.