Sander van Vugt has many years of experience working with, writing about, and teaching Linux and Open Source topics. He is the author of the best-selling Red Hat RHCSA Cert Guide and the Red Hat RHCSA Complete Video Course along with many other titles on topics that include RHCE, Bash, Kubernetes, Ansible and more. Sander also works as a Linux instructor, teaching on-site and online classes for customers around the world.
Ryan Lindfield is a consultant and trainer with a passion for network security and cryptography. Over the past 20 years, he has worked in data centers, internet service providers, and corporate offices to aid clients in the design and operation of resilient infrastructure. Ryan holds more than 30 technical certifications and is always looking forward to new technologies and challenges. Clients include Fortune 100 tech companies; defense contractors and government entities; inventors; treasure hunters; video game developers; and many more.
Sari Greene (CISSP-ISSMP, CRISC, CISM, CISA, SEC+, NSA/IAM) is an information security practitioner, author, educator, entrepreneur, and sailor. In 2003, Sari founded one of the first dedicated cybersecurity consultancies. She is a recognized leader in the field of cybersecurity and has amassed thousands of hours in the field working with a spectrum of technical, operational, compliance and management personnel as well as boards of directors, regulators, service providers, and law enforcement agencies. Sari is the author and presenter of multiple best-selling certification videos including CISSP Complete Video Course 1st, 2nd & 3rd editions, the Pearson Complete Course for CISM and the CompTIA SY0-501 & SY0-601Security+ Complete Video Courses. Sari has published a number of articles related to cybersecurity, has been quoted in the New York Times, Wall Street Journal, CNN and on CNBC, speaks regularly at cybersecurity, legal, financial and healthcare conferences and workshops around the country. Sari serves on the Bangor Savings Bank Board of Directors and chairs the Enterprise Risk Management Committee. In 2018, Sari was named Cybersecurity Educator of the Year, and presented with the Cybersecurity Excellence award. The Cybersecurity Excellence Awards is an annual competition honoring individuals and companies that demonstrate excellence, innovation, and leadership in information security.
Aamir Lakhani is a leading senior security strategist. He is responsible for providing IT security solutions to major enterprises and government organizations. Mr. Lakhani creates technical security strategies and leads security implementation projects for Fortune 500 companies. Industries of focus include healthcare providers, educational institutions, financial institutions and government organizations. Aamir has designed offensive counter-defense measures for the Department of Defense and national intelligence agencies. He has also assisted organizations with safeguarding IT and physical environments from attacks perpetrated by underground cybercriminal groups. Mr. Lakhani is considered an industry leader for creating detailed security architectures within complex computing environments. His areas of expertise include cyber defense, mobile application threats, malware management, Advanced Persistent Threat (APT) research, and investigations relating to the Internet's dark security movement. He is the author or contributor of several books, and has appeared on FOX Business News, National Public Radio, and other media outlets as an expert on cybersecurity. Writing under the pseudonym Dr. Chaos, Mr. Lakhani also operates the popular security social media blog which is hosted at DrChaos.com. In its recent list of 46 Federal Technology Experts to Follow on Twitter, Forbes magazine described Aamir Lakhani as "a blogger, InfoSec specialist, super hero...and all around good guy."
