AI and agents

AI and machine learning help you identify threats sooner and respond more effectively. Learn how to safeguard your infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS) resources across multicloud and hybrid environments.

Refine Results

Filtered by

Clear All

AI and agents

Oldest to Newest

Refine results

Sort By

Content Type

Topic

Threat intelligence

Products and services

Publish date

Start Date

End Date

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.

Explore products
August 27 2 min read

What’s new in Microsoft Security: August 2026

This month’s updates provide new capabilities to help organizations gain insights into agent activity, expand security coverage across supported environments, and enhance security management across their environments.
September 3 17 min read

ASCII smuggling crosses over from AI prompt injection to phishing evasion

Invisible Unicode characters popularized for hiding instructions from AI models are now being used to obfuscate words before email filters parse them.
September 10 5 min read

Detect and disrupt AI-themed attacks with Microsoft Defender

See how Microsoft Defender detects and disrupts AI-themed phishing, malware, and multi-stage attacks across the attack chain.
September 10 9 min read

Protecting organizations from AI-assisted executive impersonation and invoice fraud

Microsoft examines an AI-assisted business email compromise campaign that used executive impersonation and fake invoices to target finance teams with ACH payment fraud.
Retain Microsoft Defender Experts

Microsoft Defender Experts are available to strengthen your teams with expertise when and where you need it. Learn how to elevate your security with expert-led services.

Get started
September 17 3 min read

Improving email security outcomes with real-world Microsoft Defender insights

The latest email security benchmarking reports show strong Microsoft Defender performance across pre-delivery and post-delivery scenarios and reveal where threats and defenses continue to evolve.
September 17 4 min read

From guidance to action: Security fundamentals that materially reduce risk

AI has made fundamental changes to the operating environment for cybersecurity.

AI and agents

Filtered by

Refine results

Prevent threats with Microsoft Defender

​​​​​​What’s new in Microsoft Security: August 2026

ASCII smuggling crosses over from AI prompt injection to phishing evasion

Detect and disrupt AI-themed attacks with Microsoft Defender

Protecting organizations from AI-assisted executive impersonation and invoice fraud

Retain Microsoft Defender Experts

Improving email security outcomes with real-world Microsoft Defender insights

From guidance to action: Security fundamentals that materially reduce risk

Get started with Microsoft Security

What’s new in Microsoft Security: August 2026