Anti-Debugging Techniques to Use Before Releasing Software

Anti-debugging should be treated as a release-hardening discipline, not a niche countermeasure. The article walks through 18 Windows-focused techniques, covering debugger detection through IsDebuggerPresent, PEB and NtGlobalFlag checks, TLS callbacks, NtQueryInformationProcess, breakpoint detection, exception-handler tricks, thread hiding, and message-based checks. It also argues for layering these controls with obfuscation and process-level hardening, while noting that options such as Protected Process Light are limited and not a standalone defense. For technology leaders, the takeaway is to design anti-tamper protections as a layered part of software security and IP protection before release.