Discover how McGraw Hill successfully navigated the unexpected traffic surge during the COVID-19 pandemic in this SREcon22 Americas conference talk. Explore the implementation of CORE SRE principles, 'Upstream Thinking', and proactive crisis management strategies that enabled the company to thrive without compromising security or incurring significant infrastructure costs. Gain insights into multi-account and multi-cloud architecture evolution, scaling techniques, Dev+Sec+Ops integration, unified network implementation, cloud fabric development, and cost management. Learn about innovative solutions such as DNS internalization, guardrails, and security controls. Watch a demonstration of Monitoring as Code and understand how these approaches helped millions of students learn remotely during challenging times.