Microsoft Defender for Office 365

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Prevent threats with Microsoft Defender
The Microsoft Defender family offers comprehensive threat prevention, detection, and response capabilities for everyone—from individuals looking to protect their family to the world’s largest enterprises.
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July 14, 2021

8 min read

Microsoft delivers comprehensive solution to battle rise in consent phishing emails

Microsoft threat analysts are tracking a continued increase in consent phishing emails, also called illicit consent grants, that abuse OAuth request links in an attempt to trick recipients into granting attacker-owned apps permissions to access sensitive data.
July 14, 2021

8 min read

MISA expands portfolio and looks ahead during Microsoft Inspire

MISA extends product portfolio, adds sessions for Microsoft Inspire, and more.
June 14, 2021

7 min read

Behind the scenes of business email compromise: Using cross-domain threat data to disrupt a large BEC campaign

Microsoft 365 Defender researchers recently uncovered and disrupted a large-scale business email compromise (BEC) infrastructure hosted in multiple web services.
May 27, 2021

11 min read

New sophisticated email-based attack from NOBELIUM

Microsoft Threat Intelligence Center (MSTIC) has uncovered a wide-scale malicious email campaign operated by NOBELIUM, the threat actor behind the attacks against SolarWinds, the SUNBURST backdoor, TEARDROP malware, GoldMax malware, and other related components.
Retain Microsoft Security Experts
Microsoft Security Experts are now available to strengthen your team with managed security services. Learn how to defend against threats with security experts.
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May 6, 2021

2 min read

Forrester names Microsoft a Leader in the 2021 Enterprise Email Security Wave

We are proud to announce today that Microsoft is positioned as a leader in The Forrester Wave™: Enterprise Email Security, Q2 2021, receiving among the highest scores in the strategy category.
May 6, 2021

8 min read

Business email compromise campaign targets wide range of orgs with gift card scam

Read our investigation of a BEC campaign that used attacker-created email infrastructure to facilitate gift card theft targeting the consumer goods, process manufacturing and agriculture, real estate, discrete manufacturing, and professional services sectors.
May 6, 2021

5 min read

Business email compromise: How Microsoft is combating this costly threat

Business email compromise is the costliest phishing attack threat to organizations.
March 2, 2021

7 min read

4 ways Microsoft is delivering security for all in a Zero Trust world

Today we’re excited to share with you several new innovations across four key areas—identity, security, compliance, and skilling—to give you the holistic security protection you need to meet today’s most challenging security demands.
Modernize your Security Operations Center with Microsoft Sentinel
Microsoft Sentinel is a cloud-native SIEM solution powered by AI and automation that delivers intelligent security analytics across your entire enterprise.
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February 1, 2021

18 min read

What tracking an attacker email infrastructure tells us about persistent cybercriminal operations

Sweeping research into massive attacker infrastructures, as well as our real-time monitoring of malware campaigns and attacker activity, directly inform Microsoft security solutions, allowing us to build or improve protections that block malware campaigns and other email threats, both current and future, as well as provide enterprises with the tools for investigating and responding to email campaigns in real-time.
December 16, 2020

4 min read

Terranova Security Gone Phishing Tournament reveals continued weak spot in cybersecurity

See which industries had the highest click rates, as well as results sorted by organization size, previous training, and more.
October 5, 2020

3 min read

Why integrated phishing-attack training is reshaping cybersecurity—Microsoft Security

Phishing is still one of the most significant risk vectors facing enterprises today.
August 11, 2020

4 min read

Microsoft Office 365—Do you have a false sense of cloud security?

Security is not just flipping the switch of security features to “on” and think you are done.