If you are receiving frequent Authenticator verification alerts, it may be due to anomalous sign-ins or attempts to access your account from unfamiliar locations. Starting in August 2023, notifications for these types of sign-ins may not generate alerts, but you can still approve them by opening the Microsoft Authenticator app directly. Additionally, ensure that your account is not being targeted by unauthorized access attempts, which could lead to repeated verification requests.
If the alerts are excessive and seem unwarranted, consider reviewing your account security settings or contacting support for further assistance.
References: