
Chester Wisniewski
Chester Wisniewski is Director, Global Field CTO at next-generation security leader Sophos. With more than 25 years of security experience, his interest in security and privacy first peaked while learning to hack from bulletin board text files in the 1980s, and has since been a lifelong pursuit.
Chester works with Sophos X-Ops researchers around the world to understand the latest trends, research and criminal behaviors. This perspective helps advance the industry's understanding of evolving threats, attacker behaviors and effective security defenses. Having worked in product management and sales engineering roles earlier in his career, this knowledge enables him to help organizations design enterprise-scale defense strategies and consult on security planning with some of the largest global brands.
Based in Vancouver, Chester regularly speaks at industry events, including RSA Conference, Virus Bulletin, Security BSides (Vancouver, London, Wales, Perth, Austin, Detroit, Los Angeles, Boston, and Calgary) and others. He’s widely recognized as one of the industry’s top security researchers and is regularly consulted by press, appearing on BBC News, ABC, NBC, Bloomberg, Washington Post, CBC, NPR, and more.
When not busy fighting cybercrime, Chester spends his free time cooking, cycling, and mentoring new entrants to the security field through his volunteer work with InfoSec BC. Chester is available on Mastodon (securitycafe.ca/@chetwisniewski).
For press inquiries, email chesterw [AT] sophos [.] com.
Contenuto di Chester Wisniewski

Security Operations
Active Advisory
The Active Adversary Report: la forza dei numeri
February 24, 2026

Products & Services
CVE
featured
MITRE
threat research
Oltre il controllo di una sola nazione: ripensare la gestione dei CVE
April 24, 2025

Threat Research
2FA
authentication
featured
MFA
passcode
WebAuthn
Il futuro dell’MFA è scritto, ma siamo pronti ad accoglierlo?
March 25, 2025

Security Operations
Pacific Rim
Pacific Rim thought leadership
Sophos X-Ops
Pacific Rim: cosa c’entra con te?
November 4, 2024

Threat Research
CISA
featured
law enforcement
Ransomware
Secure by Design
I difensori si riuniscono: è il momento di scendere in campo
May 16, 2024

Threat Research
featured
law enforcement
Lockbit
Ransomware
takedown
LockBit: come si vince la guerra contro il crimine informatico
February 29, 2024

Products & Services
Privacy
Security
web security
I 10 migliori consigli per proteggere la vostra privacy e la vostra sicurezza quando fate shopping online … ma non solo
November 24, 2023

Threat Research
featured
push left
remote working
ZTNA
Ovunque andranno i vostri dipendenti, non dovrete mai lasciarli soli
June 6, 2023

Security Operations
featured
Russia
Ucraina
Sei mesi dopo: un’analisi del ruolo degli attacchi informatici nella guerra in Ucraina
September 22, 2022