Update about.md

Author: codeh4ck3r

tabs/about.md

@@ -25,5 +25,9 @@ Network/Infrastructure Penetration Testing
 Source Code Review (PHP, NodeJS)   
 Thick Client Pentesting   
 Automating Security Tasks & Workflows  
+Threat Modeling (STRIDE, PASTA)  
+Social Engineering  
+Open Source Intelligence (OSINT)  
+
 
 I Do Freelance Work, If You Have Requirement Then Please Drop Email [sujitsuryawanshi987@gmail.com](mailto:sujitsuryawanshi987@gmail.com) Or Ping Me On [LinkedIn](https://in.linkedin.com/in/codeh4ck3r)