What to do in the event of Microsoft 365 account compromise
These instructions detail how you can regain control of your account and warn others. We also explain how to isolate your account, determine what the attacker has done and what you can do to prevent account compromise.
On this page
The measures listed in this section are intended for all users. Be sure to also report the incident to your organisation’s IT department so that they can continue investigating the matter according to instructions.
Preventive measures
If the following functionalities are active, you can enable them by following the instructions provided below.
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