Technical debt in software and infrastructure refers to the accumulated future cost of addressing shortcuts and compromises made during development to prioritize speed and immediate functionality over long-term quality and maintainability. While initially a strategic tradeoff in agile environments, technical debt can lead to increased complexity, reduced velocity, and heightened cybersecurity risks if ignored. It manifests in various forms such as code, architectural, build, documentation, and infrastructure debt, each contributing to vulnerabilities like unpatched systems, insecure applications, and misconfigured environments. Real-world breaches, such as those experienced by McDonald's and TransUnion in 2025, highlight the consequences of technical debt in cybersecurity, emphasizing the need for awareness and proactive management. Measuring and addressing this debt with tools and metrics can mitigate its impacts, transforming it into a manageable risk. Failure to manage technical debt can result in significant financial, reputational, and operational fallout, making its resolution essential for building resilience in rapidly evolving technological landscapes.