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Gerard

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  1. 227 votes
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    8 comments  ·  Office 365 Admin » Exchange Admin  ·  Flag idea as inappropriate…  ·  Admin →
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  2. 3,663 votes
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    200 comments  ·  Office 365 Security & Compliance  ·  Flag idea as inappropriate…  ·  Admin →

    Azure Active Directory Conditional Access has functionality for “Countries/Regions” – see https://docs.microsoft.com/en-us/azure/active-directory/conditional-access/location-condition

    That said, the most effective protection you can have against password spray attacks is to enable MFA and disable basic authentication. If you cannot do this for your entire organization, then blocking user access to legacy protocols like POP, EWS, IMAP and SMTP is another step you can take. Exchange Online Client Access Rules can help you to further customize (https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/client-access-rules/client-access-rules). For additional recommendations, please see Office 365 Secure Score.

    That said, please know that we are listening to feedback and working on solutions to help make Office 365 users more secure. Thank you for the feedback.

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  3. 43 votes
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    4 comments  ·  Office 365 Admin » Exchange Admin  ·  Flag idea as inappropriate…  ·  Admin →
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