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Microsoft took a big step to stop spam attacks, introduced a new feature

Highlights

Microsoft has introduced a new feature in the Microsoft Authenticator app.
The new feature is meant to prevent spam attacks, and is currently only available to admins.
Earlier this year, an MFA attack was targeting Office 365 users.

Microsoft Microsoft has rolled out a new feature in its Multi-Factor Authentication (MFA) app, Microsoft Authenticator, to curb spam attacks. According to a report in ZDNet, Microsoft has rolled out ‘number matching’ in push notifications, and it will help prevent multi-factor authentication attacks that rely on push notification spam.

When ‘Number Matching’ is activated while approving a multi-factor authentication request, the Authenticator app asks the user to enter the number shown on the sign-on screen instead of just selecting ‘Approve’. This will be a useful feature for admins whose users are not prepared for multi-factor authentication attacks.

This feature is only available for admins for now, but the company wants to make ‘number matching’ the default for all authenticator users in February 2023.

To avoid inadvertent approval, admins can set up to use ApplicationContext and LocationContext. Once the new feature defaults to the Authenticator app, admin rollout controls will be removed.

Office 365 users have been targeted
Earlier this year, researchers found an ‘MFA attack’ targeting Office 365 users. In those attacks, attackers continually cause MFA push alerts when trying to log into the victim’s account using a password that was previously compromised.

Apart from this, in January 2022 earlier this year, the company launched Microsoft HoloLens 2. It was introduced as a successor to the Origin HoloLens. Sensors have been provided in this device to track the brain and eyes and it allows users to interact with the hologram.

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