Google Project Zero has published a write-up on Windows 11 25H2's Administrator Protection, a headline feature designed to replace User Account Control (UAC). According to the post, the goal is to allow a local user to access administrator privileges through a more robust and, importantly, securable system than UAC.
The write-up is titled "Bypassing Windows Administrator Protection" and describes a bypass of the new protection. The source does not include independent confirmation or contrast with other research; it is a single Project Zero analysis.
The significance is that a key security addition in the latest Windows 11 release may not provide the protection it promises. With only one source, the finding should be read as a researcher claim rather than a community-wide consensus.