Sophistication

2022

First Seen

Notoriety

Stealth

Immersive Rating

Impact

Tactics Variety

HAFNIUM

Chinese group behind the 2021 Microsoft Exchange Server exploitation spree. Attacks allowed mass access to internal emails across thousands of organizations. Known for stealthy exfiltration and fast-moving campaigns.

Key behaviours to watch:

Immersive coverage includes:

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Blog

Releated Content

Research

Nov 26, 2025

RMM Tools Under Attack: Exploring More Effective Detections

Threat Intelligence

Nov 17, 2025

ScoringMathTea Analysis: Inside the Lazarus Group’s Flagship Cyber Espionage Malware

Research

Nov 11, 2025

Patch Tuesday November 2025 - Critical Microsoft Security Patches Released For Privilege Escalation and Remote Code Vulnerabilities

Blog

AI-Focused Blogs

Gain quick insights into emerging AI threats and trends.

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HAFNIUM

Key behaviours to watch:

Immersive coverage includes:

Releated Content

RMM Tools Under Attack: Exploring More Effective Detections

ScoringMathTea Analysis: Inside the Lazarus Group’s Flagship Cyber Espionage Malware

Patch Tuesday November 2025 - Critical Microsoft Security Patches Released For Privilege Escalation and Remote Code Vulnerabilities

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AI-Focused Blogs

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