Building great security programs takes more than checklists and best practices—it takes vision, collaboration, and adaptability. In this episode, Bonnie Viteri, Principal Technical Security Engineer at Yahoo, shares how to build scalable, resilient programs that evolve, survive leadership turnover, and actually provide value to the business. 🔔 Subscribe for more practical AppSec insights:https://www.youtube.com/channel/UCLgzXoXJ-TGO-y7Eh9quDUQ?sub_confirmation=1 Chapters:00:00 – Start with the End: Vision-Driven Program Design01:08 – Meet Bonnie Viteri: From Behavioral Psychology to Cybersecurity02:10 – Foundation First: Mission, Vision, and Cross-Team Buy-In04:07 – Designing Security Documents with Developers, Not for Them06:00 – Metrics, Failure, and the Power of Feedback Loops08:25 – People, Process, or Tech? Defining the Program Purpose09:31 – Five-Year Plans and Building for Scale12:26 – Implementation: Ownership, Handoffs, and Real-World Use14:15 – Documentation That Survives Team Turnover16:51 – Centralizing Knowledge and Making It Discoverable18:30 – Program Optimization Through Onboarding and Culture20:48 – Keeping Programs Alive via Security Champions & Internal Comms22:25 – Case Study: API Security Documentation That Worked25:19 – Reporting Program Value in Business Language27:03 – Best Advice: "Your Fire Isn’t My Fire"29:11 – Worst Advice: “You’d Be Bored as a Manager”29:58 – Final Thoughts: Build, Fail Fast, Pivot Smarter What You’ll Learn:- How to build and scale a security program across teams- Why collaboration and early buy-in matter- Strategies for long-term documentation and program handoff- How to connect program value to business language and executive metrics- Real-world case study of API security success at scale 📺 Watch Next:▶️ Secrets of AppSec Champions Podcast: https://www.youtube.com/playlist?list=PLR-uH0PJFszFcbMJ29AfAcWIJAPbBJaC7▶️ Our Customers’ Success Stories & Reviews: https://youtube.com/playlist?list=PLR-uH0PJFszHDC0p6CBEvccqx1uNx8fpT&si=SUI6d31ResR51434▶️ OWASP Top 10 LLM is Dead: Here's Why: https://youtu.be/Wet1tkt1eAw?si=NTUef42qt1WzcHbn▶️ Mend.io Product Overview Demo: https://youtu.be/HfZ3uK-Eg5c▶️ The Truth Behind Successful Security Operations Centers (SOC): https://youtu.be/XMlrxoIJVXg 🌐 Connect with Us:🔗 Website: https://www.mend.io🐦 Twitter: https://twitter.com/mend_io📘 Facebook: https://www.facebook.com/mendappsec💼 LinkedIn: https://www.linkedin.com/company/2440656 📜 Disclaimer:This video is for educational purposes only. Mend.io is not responsible for any security decisions made based on this content. #appsecurity #cybersecurity #cybersecurityexperts Mend.io, formerly known as Whitesource, has over a decade of experience helping global organizations build world-class AppSec programs that reduce risk and accelerate development -– using tools built into the technologies that software and security teams already love. Our automated technology protects organizations from supply chain and malicious package attacks, vulnerabilities in open source and custom code, and open-source license risks. With a proven track record of successfully meeting complex and large-scale application security needs, Mend.io is the go-to technology for the world’s most demanding development and security teams. The company has more than 1,000 customers, including 25 percent of the Fortune 100, and manages Renovate, the open source automated dependency update project. For more information, visit www.mend.io, the Mend.io blog, and Mend.io on LinkedIn and Twitter.