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Over 3,200 cybersecurity vendors. 2022 growth rates for each vendor and their size by headcount.

New contributions from the founders of Trend Micro, Sourcefire, and QuickHeal.

New data derived from the only platform for researching the cybersecurity industry.

Security Yearbook 2023 is the fourth edition of the only history of the people, companies, and pioneers who created the industry of firewalls, endpoint security, identity, encryption, and managed security services. It is an indispensable desk reference and a great read.  Anyone who works in the industry or as a security professional needs to have this book. Students studying cybersecurity will want this book. Investors trying to figure out how the industry works will gain new insights.