Tag: Microsoft Defender

Are you looking for information about Microsoft Defender? In this archive you will find all our posts about Microsoft Defender.

Show First Contact Safety Tip in Email

By Oliver Müller

On 10. June 2023

In Microsoft 365

First Contact Safety Tip is a feature in Microsoft Office 365 to better protect users from phishing attacks. First Contact Safety Tip is part of Microsoft Defender for Office 365 or Exchange Online Protection and helps users detect fake or fraudulent mails.

If a suspicious email is received, the email will have a warning in the header informing the user that it may be phishing email. The warning is shown in one of the following cases:
– the sender sends an email to the mailbox for the first time
– the sender very rarely sends an email to this mailbox

Setting up SPF, DKIM and DMARC in Exchange Online

By Oliver Müller

On 4. March 2023

In Microsoft 365

SPF (Sender Policy Framework), DKIM (Domain Keys Identified Mail) and DMARC (Domain based Message Authentication, Reporting and Conformance) are used to check email messages. In combination, the three procedures achieve a high level of security with regard to the authenticity of the sender and content of an email.

This guide sets up SPF, DKIM and DMARC for Exchange Online.

Onboarding Microsoft Defender for Business

By Oliver Müller

On 16. July 2022

In Microsoft 365

Microsoft Defender for Business provides holistic security for multiple operating systems. Built-in intelligence ensures immediate detection, defense and response to current threats such as ransomware, malware or pishing. Microsoft Defender for Business is suitable for companies with up to 300 employees.

The rollout of this software within an Active Directory domain is very simple. Here is a step-by-step guide on how to perform the rollout with default settings.

Microsoft 365 Defender: Safe Attachments and Safe Links

By Oliver Müller

On 15. January 2022

In Microsoft 365

Safe Attachments, Safe Links? Why do we need this?
We work more and more with Email, Teams, OneDrive, Sharepoint share files with external people. We chat, we want to work from anywhere and we want to do this with all possible systems (Modern Workplace). A simple virus and spam protection, which is running by Exchange Online Protection (EOP) on every Exchange Online, is often no longer sufficient.
Microsoft 365 Defender show two additional features: Safe Attachments and Safe Links. Both are easy to configure and extend the security enormously.