.svg?width=93&quality=80&auto=webp&format=auto&cache=true&immutable=true&cache-control=max-age%3D31536000 "Home"){kind=logo}
.svg?width=7&quality=80&auto=webp&format=auto&cache=true&immutable=true&cache-control=max-age%3D31536000 "Top Navigation - Sign in - Icon")
John Shier
John Shier is a Field CTO at Sophos. John is a popular presenter at security events, and is well-known for the clarity of his advice, even on the most complex security topics. John doesn't just talk the talk: he also gives hands-on technical support and product education to Sophos partners and customers.
内容提供者 John Shier
Security Operations
Threat Research
Active Adversary
Active Adversary Report
Nowhere, man: The 2026 Active Adversary Report
February 24, 2026
Security Operations
Threat Research
Active Adversary
Active Adversary Report
Compromised Credentials
detection
dwell time
Featured
impact
incident response
LOLBIN
MFA
Monitoring
RDP
Remote Ransomware
root cause
It takes two: The 2025 Sophos Active Adversary Report
April 2, 2025
Security Operations
Threat Research
Active Adversary
Active Adversary Report
Featured
incident response
IR
LoLBINs
MDR
RDP
The Bite from Inside: The Sophos Active Adversary Report
December 12, 2024
