Task 02: Configure Microsoft Defender for Office 365 Safe Links and Safe Attachments
Protect users from malicious email links and attachments by enabling preset security policies in Microsoft Defender for Office 365.
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In the leftmost pane, select Email & collaboration > Policies & rules.
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Select Threat policies.
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Select Preset Security Policies.
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Under Standard protection, select Manage protection settings to start the wizard.
Expand here to configure Safe Links and Safe Attachments
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On the Exchange Online Protection page, select All recipients, then select Next.
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On the Defender for Office 365 Protection page, select All recipients, then select Next.
The assignments above create or update Safe Links and Safe Attachments policies for everyone in the organization.
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On the Impersonation Protection page, select Next.
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Optionally add VIP mailboxes, domains, and trusted senders, then select Next.
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On the Policy mode page, select Turn on the policy when finished and select Next.
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Select Confirm to submit and then select Done.
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