Microsoft has quietly announced a change in account sign-in procedures set to take effect in February, potentially raising security concerns for users. The update will keep users logged in by default, even after closing the browser, leaving personal data vulnerable on shared devices. Microsoft suggests users can avoid this by using private browsing. This move deviates from common industry standards, prompting questions about the reasoning behind it. While the change mirrors Google’s existing practices, it may streamline the user experience for those primarily accessing their accounts from a single device. Nevertheless, caution is advised, and users are encouraged to enable additional security measures such as two-factor authentication.