What controversy is surrounding the White House and the IRS regarding access to sensitive tax information?

According to the Washington Post, the White House is pressuring the IRS to grant access to sensitive tax information to a 25-year-old software engineer associated with Elon Musk. This individual has reportedly been trying to delete their online history of amplifying white supremacist content and praising Holocaust deniers. Concurrently, NBC News has confirmed that the acting head of the Social Security Administration has resigned following a conflict with Musk's team over access to sensitive data in their system. These developments raise significant concerns about the security of confidential taxpayer information and the appropriate boundaries of government data access.