Uploaded November 2024 | Updated September 2026, 2 weeks ago

---

Learn how to secure your Spring Boot applications from common vulnerabilities caused by exposing user IDs or object references in URLs.

In this short tutorial, I’ll show you why using auto-incremented numbers or predictable IDs can lead to security risks and how you can fix this with UUIDs and Spring Security annotations like @PreAuthorize and @PostAuthorize.