the draft letter to Congress that was seen by Bloomberg News, wrote: “The analysis concluded that the highly sensitive bank information contained in the e-mails and attachments is likely to result in demonstrable harm to public confidence.
[...] The hackers penetrated the mailboxes of senior deputy comptrollers, international banking supervisors and other staff, one of the people said.
In all, they had access to roughly 150,000 e-mails from May 2023 until they were discovered and ousted earlier in 2025, the draft letter to Congress said.
In the draft letter, Ms Baldwin said: “Earlier this year, the OCC discovered unauthorised access to a limited number of its executives’ and employees’ e-mails that contain highly sensitive information relating to the financial condition of federally regulated financial institutions used in its examinations and supervisory oversight processes.