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Ondrej Krehel

Lecturer; CEO and Founder, LIFARS LLC

Dr. Ondrej Krehel, CEO & Founder of LIFARS, is recognized world-wide for his Digital Forensic expertise and Ethical Hacking. He actively participates in high-profile engagements around the world, whereby his professional experience is leveraged to achieve the most rapid root-cause analysis and remediation. He is a former lecturer at FBI Training Academy and Chief Information Security Officer of IDT911, the nation’s premier identity theft recovery and data breach management service. Dr. Krehel previously led forensic investigations and cybersecurity consulting at Stroz Friedberg encompassing US government engagements and missions, including military cyber special operations.

With two decades of experience in security and forensics, Dr. Krehel has conducted a wide range of court expert witness testimonies (including Federal Courts such as Southern District of New York), red team exercises, cyber resilience matters, forensics investigations, including data breached through computer intrusions, theft of intellectual property, massive deletions, defragmentation, enterprise risk matters, entropy classifications, advanced file recovery and carvings, anti-money laundering, financial fraud, mathematical modeling, and computer hacking.

Dr. Krehel is a frequent speaker at industry events and author on matters related to information security and computer forensics. His work has received attention from CNN, ABC, BBC, NBC, Reuters, Bloomberg, The Wall Street Journal and The New York Times.


  • Ph.D., Computer Forensics, Police Academy, Bratislava
  • M.S., Mathematical Physics, Comenius University, Bratislava
  • Engineering Diploma, Technical University, Zvolen, Slovakia