About The Author

About Alexander Feick

As the Vice President of Labs at eSentire, Alexander Feick leads a team responsible for fostering innovations from security professionals on eSentire's platform and integrating new technologies into the company's services. With over 17 years of technology experience and 14 years at eSentire focused on Managed Detection and Response, Alexander has been instrumental in transforming security services and driving continuous growth. Recently, his efforts have centered on generative AI security and enabling the company to leverage the technology more effectively internally. A member of eSentire's Distinguished Security Professionals (DSP), he sets a high standard for technical expertise and vision within the organization.

Acknowledgments

This book reflects the work of many hands. The editors and early readers who helped refine each chapter’s clarity and flow turned a dense manuscript into something readable and real. I’m deeply grateful to my team at eSentire, whose daily pursuit of innovation and security gave me the raw material to write about. The lessons, experiments, and breakthroughs they’ve produced over the past few years, striving to secure and apply the breakthrough in AI that began this transformation, form the living foundation beneath these pages.

My thanks also extend to the researchers, academic collaborators, and colleagues who’ve partnered with us through our extended research initiatives. Their rigor, creativity, and willingness to test boundaries have shaped much of the thinking represented here.

To my family—especially my wife, Laura—thank you for the patience, support, and borrowed hours that made this possible. Every page represents time you gave me to think, and I don’t take that lightly.

Trust, like progress, is never accidental. It’s built through collaboration—between people, teams, and ideas—and it’s what makes every transformation worth pursuing.