John Shier

New level of complexity when files are triple encrypted says John Shier at Sophos

Sophos, announced in the Sophos X-Ops Active Adversary whitepaper, “Multiple Attackers: A Clear and Present Danger,” that Hive, LockBit and BlackCat, three prominent ransomware gangs, consecutively attacked the same network. The first

4 years ago

by GEC NEWS WIRE

John Shier at Sophos describes why CISOs must shift from reactive to resilience-building strategies

During GITEX 2025, John Shier, Field CISO, Sophos, describes Sophos’ participation at GITEX; the evolving global and Middle East threat landscape, with a focus on supply chain vulnerabilities and ransomware; how Generative

8 months ago

GITEX 2025·Video

The State of Cybersecurity 2023: The Business Impact of Adversaries on Defenders

Sophos, a global leader in innovating and delivering cybersecurity as a service, today published a new survey report, “The State of Cybersecurity 2023: The Business Impact of Adversaries on Defenders,” which found

3 years ago

Technology

John Shier, senior security expert at Sophos.

Priority for security must match cloud adoption

Sophos has published findings of a new survey, The Reality of SMB Cloud Security in 2022. The survey found that, among Infrastructure as a Service, IaaS users, 56% experienced an increase in

3 years ago

Technology

Sophos survey finds 56% IaaS users experienced increase in volume of attacks on their organisation

Sophos, a global leader in innovating and delivering cybersecurity as a service, published findings of a new survey, “The Reality of SMB Cloud Security in 2022.” The survey found that, among Infrastructure

3 years ago

Technology

Healthcare targeted for ransomware with attacks surging 94% YoY finds Sophos survey

Sophos, a global leader in next-generation cybersecurity, has published a new sectoral survey report, “The State of Ransomware in Healthcare 2022.” The findings reveal a 94% increase in ransomware attacks on the

4 years ago

Technology

(Left to right) Maher Jadallah, Regional Director Middle East at Tenable; Rajesh Ganesan, Vice President, ManageEngine; John Shier, Sr Research Scientist at Sophos; Michel Huffaker, Director of Threat Intelligence at ThreatQuotient.

Industry executives review the rising cybersecurity threat in oil and gas sector

The recent ransomware attack on Colonial Pipeline in the US points to an alarming rise of cyberattacks on critical infrastructure. According to the World Economic Forum’s 2021 Global Risks Report, cybersecurity failures are

5 years ago

Technology

John Shier, Sr Research Scientist, Sophos.

Sophos Playbook 2021 finds median dwell time 11 days, 81% ransomware in 2020

Sophos, released the Active Adversary Playbook 2021, detailing attacker behaviors and the tools, techniques and procedures that Sophos’ frontline threat hunters and incident responders saw in the wild in 2020. The TTP

5 years ago

Technology

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John Shier

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