About Us


Karl Sigler

Karl Sigler

Senior Security Research Manager at Trustwave

Karl Sigler is Threat Intelligence Manager at Trustwave where he is responsible for research and analysis of current vulnerabilities, malware and threat trends. Karl and his team run the email advisory service, serve as liaison with Microsoft MAPP program, and coordinate disclosures of discovered vulnerabilities. Most recently, Karl was one of the security researchers instrumental in identifying "Backoff" point of sale malware that affected more than 1000 retailers worldwide.

Before joining Trustwave in 2013, Karl worked as the head of the IBM X-Force Education group for 12 years and has presented on topics like Intrusion Analysis and Penetration Testing to audiences in over 30 countries. In 2003 he released Knoppix-STD, the first Live LinuxCD dedicated to pen testing and forensics and a predecessor to distributions like BackTrack, Kali and Pentoo.