diff --git a/README.md b/README.md
index 665ed62..e56791c 100644
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+++ b/README.md
@@ -483,6 +483,7 @@ These can be useful for osint and social engineering.
 - [bootloaders.io](https://www.bootloaders.io/) - Curated list of known malicious bootloaders for various operating systems
 - [WTFBins](https://wtfbins.wtf/) - Catalogue benign applications that exhibit suspicious behavior. These binaries can emit noise and false positives in threat hunting and automated detections
 - [LOFLCAB](https://lofl-project.github.io/) - Document every cmdlet, binary, script, and WMI class that can be used for Living Off the Foreign Land techniques
+- [OpSecFailure](https://opsecfail.github.io/) - Site that lists how individuals messed up their opsec, no personal info is shared on this site
 
 ### Web History