added Security section and pointer to webseclab
diff --git a/Projects.md b/Projects.md
index 4db96a2..4171a56 100644
--- a/Projects.md
+++ b/Projects.md
@@ -49,6 +49,7 @@
 * [P2P and File Sharing](#p2p-and-file-sharing)
 * [Programming](#programming)
 * [Scanner and Parser Generators](#scanner-and-parser-generators)
+* [Security](#security)
 * [Simulation Modeling](#simulation-modeling)
 * [Sorting](#sorting)
 * [Source Code Management](#source-code-management)
@@ -1019,6 +1020,10 @@
   * [Ragel](http://www.complang.org/ragel/) - State Machine Compiler
   * [y](http://github.com/cznic/y) - Package y converts .y (yacc) source files to data suitable for a parser generator.
 
+## Security 
+
+  * [webseclab](https://github.com/yahoo/webseclab) - a sample set of web security test cases and a toolkit to construct new ones. 
+
 ## Simulation Modeling
 
   * [godes](https://github.com/agoussia/godes) - Library for building discrete event simulation models