Email security Insights | Microsoft Security Blog

Microsoft Cyber Defense Operations Center.

January 6, 2025
7 min read

Why security teams rely on Microsoft Defender Experts for XDR for managed detection and response

Microsoft Defender Experts for XDR is a mature and proven service that triages, investigates, and responds to incidents and hunts for threats on a customer’s behalf around the clock.

Customer securely using multi-factor authentication on a mobile phone and a tablet while working remote from a caf.

November 4, 2024
6 min read

How Microsoft Defender for Office 365 innovated to address QR code phishing attacks

This blog examines the impact of QR code phishing campaigns and the innovative features of Microsoft Defender for Office 365 that help combat evolving cyberthreats.

A security practitioner works at a computer.

March 21, 2024
5 min read

How Microsoft Incident Response and Microsoft Defender for Identity work together to detect and respond to cyberthreats

Learn how Microsoft Incident Response works together with Microsoft Defender for Identity to give customers fast, flexible service—before, during, or after a cybersecurity incident occurs.

An illustration showing how hackers operate during tax season.

March 20, 2024
4 min read

Microsoft Threat Intelligence unveils targets and innovative tactics amidst tax season

Cybercriminals use social engineering during holidays and important events like tax season to steal user information.

Photo of a man sitting alone at a table in an office building and works on a laptop.

September 12, 2023
8 min read

Malware distributor Storm-0324 facilitates ransomware access

The threat actor that Microsoft tracks as Storm-0324 is a financially motivated group known to gain initial access using email-based initial infection vectors and then hand off access to compromised networks to other threat actors.

A man wearing glasses sorts through emails using Microsoft Outlook.

August 1, 2023
3 min read

Microsoft Defender for Office 365 gets highest rating in SE Labs Enterprise Email Security Services test for Q1 2023

In Q1 2023 Q1, Microsoft was once again part of an evaluation of email security platforms conducted by SE Labs.

Camera focused on laptop screen showing security dashboard while security decision makers present to the board of executives on security topics.

June 12, 2023
3 min read

Forrester names Microsoft a Leader in the 2023 Enterprise Email Security Wave

Microsoft Defender for Office 365 is recognized as a Leader in Forrester’s 2023 Enterprise Email Security Wave Report.

June 6, 2023
6 min read

Why a proactive detection and incident response plan is crucial for your organization

Matt Suiche of Magnet Forensics talks about top security threats for organizations and strategies for effective incident response.

Graphic depicting phishing risks and other cybersecurity threats.

May 19, 2023
3 min read

Cyber Signals: Shifting tactics fuel surge in business email compromise

Business email operators seek to exploit the daily sea of email traffic to lure victims into providing financial and other sensitive business information.

Hybrid employees collaborating on a shared device.

February 21, 2023
4 min read

Microsoft Defender for Office 365 named Best Email Security Service of 2023 by SE Labs

Microsoft Defender for Office 365 receives Best Email Security Service of 2023 award by SE Labs.

Decision maker creating a survey or taking a security assessment on the warehouse floor of a textile manufacturing plant.

January 25, 2023
8 min read

Microsoft Security reaches another milestone—Comprehensive, customer-centric solutions drive results

Learn how Microsoft Security is simplifying security for the new hybrid, multi-platform environment while fostering a diverse new generation of defenders—and how your organization can benefit.

Conference room table with four people in a meeting with Surface Laptop Go 2 and Surface 2-in-1‘s.

June 22, 2022
2 min read

Microsoft Defender for Office 365 receives highest award in SE Labs Enterprise Email Security Services test

Microsoft received an AAA Protection Award for Microsoft Defender for Office 365, the highest possible award that vendors can achieve in this test.

Email security

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