Lessons from the Frontlines

Assaf's writing style is immediately engaging. Readers will delight in his humble real life experiences and lessons learned on his way to earning a top executive seat in the thrillingly dynamic field of CyberSecurity.

As both a former CISO and current CEO, I wish I'd had this book early in my career. Keren cuts through the noise to deliver what security leadership actually requires: practical frameworks forged through real failures and hard-won successes. This isn't theory, it's battle-tested wisdom that will make you more effective from day one.

This book offers a rare and powerful opportunity to learn directly from his extensive experience as a CISO. As a former colleague who had the privilege of learning directly from Assaf, I can personally attest to the invaluable wisdom and world-class expertise contained within these pages.

I've known and admired Assaf for years. What makes this book so powerful is that it's not theory – it's hard-won lessons from someone who has built, rebuilt, and led security at the very top. Any current or aspiring security leader will walk away with practical insights they can apply immediately.

Reading this book feels like sitting down with a trusted mentor who has lived through every security challenge you can imagine. Assaf writes with the simplicity and authenticity of someone who's been in the trenches, made hard calls, and learned from both wins and setbacks.

Building and sustaining security in major enterprises is much more than a technical discipline. Rather, it's an intense leadership challenge balancing influence, grit and team building. Assaf's personal journey revealed in this book contains lessons for all security professionals - whether you are starting out or an established leader you will love this.

Assaf Keren shows how curiosity helps security leaders identify important threats, and how grit, resilience, and communication build effective security teams.

As a journalist who has covered cybersecurity, I expected the book to be a technical deep dive. Instead, it highlights just how much of the job comes down to judgment and people skills, while still giving a strong dose of practical advice professionals can bring to the job.