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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.
Conteúdo por 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
Products & Services
Security Operations
Threat Research
EXFILTRAÇÃO
EXTORSÃO
incident response
MANUAL ADVERSÁRIO ATIVO
PESQUISA DE AMEAÇA
Philadelphia ransomware
VIOLAÇÃO DE DADOS
Tudo em todos os lugares ao mesmo tempo: o relatório de adversários ativos de 2023 para líderes empresariais
April 26, 2023
Security Operations
Ransomware
Sophos EDR
Sophos Managed Threat Response (MTR)
Sophos Rapid Response
The Active Adversary Playbook 2021
May 18, 2021
