diff --git a/README.md b/README.md
index 1b19d80..fe36aff 100644
--- a/README.md
+++ b/README.md
@@ -251,6 +251,7 @@ These can be useful for osint and social engineering.
 - [socradar.io](https://socradar.io/) - Extension to your SOC team
 - [VirusShare](https://virusshare.com/) - System currently contains 48 million malware samples
 - [WikiLeaks](https://wikileaks.org/) - News leaks and classified media provided by anonymous sources
+- [PassiveTotal](https://www.riskiq.com/products/passivetotal/) - Security intelligence that scales security operations and response
 
 
 ### Web History