Michal Zalewski has been actively involved in disaster preparedness for more than a decade, including the publication of a popular 2015 guide titled Disaster Planning for Regular Folks. By day, he is an accomplished security researcher who has been working in information security since the late 1990s, helping companies map out and manage risk in the digital domain. He is the author of two classic security books, The Tangled Web and Silence on the Wire (both No Starch Press). He spent 11 years at Google building its product security program before joining Snap Inc. as a VP of Security & Privacy Engineering. Zalewski grew up in Poland under communist rule, lived through the collapse of the Soviet Bloc, and moved to the US in 2001.