diff --git a/_modules/week-02.md b/_modules/week-02.md
index d38438a..cea5b77 100644
--- a/_modules/week-02.md
+++ b/_modules/week-02.md
@@ -4,16 +4,17 @@ title: 'Week-2'
 
 
 Aug 28
-: [Security Fundamentals 2]()
+: [Security Fundamentals 2](https://purdue.brightspace.com/d2l/le/content/832199/Home?itemIdentifier=D2L.LE.Content.ContentObject.ModuleCO-14109853)
   :  [**HW1 Release**](https://purdue.brightspace.com/d2l/le/content/832199/viewContent/14099764/View){: .label .label-purple }
 
 
 
 Aug 30
-: [Buffer Overflow Attacks]()
+: [Buffer Overflow Attacks](https://purdue.brightspace.com/d2l/le/content/832199/Home?itemIdentifier=D2L.LE.Content.ContentObject.ModuleCO-14109853)
   : 
   : <details title="recommended readings" class="my"><summary><i class="icon fas fa-book-reader "></i></summary><span class="fs-2" markdown=1>Read: [Smashing the Stack for Fun and Profit by Aleph One](http://phrack.org/issues/49/14.html#article); Optional: 0×300-0×320 from [Hacking book](http://www.lib.purdue.edu/holdings?isbn=9781593271442&course=202410-CS-42600). 0×200-0×270 if you don't have a strong C background.</span></details>
 
 Sep 01
-: [Buffer Overflow Attacks 2]() 
+: [Buffer Overflow Attacks 2](https://purdue.brightspace.com/d2l/le/content/832199/Home?itemIdentifier=D2L.LE.Content.ContentObject.ModuleCO-14109853) 
   :  
+  : <details title="recommended readings" class="my"><summary><i class="icon fas fa-book-reader "></i></summary><span class="fs-2" markdown=1>Same as prev lecture: Read [Smashing the Stack for Fun and Profit by Aleph One](http://phrack.org/issues/49/14.html#article); Optional: 0×300-0×320 from [Hacking book](http://www.lib.purdue.edu/holdings?isbn=9781593271442&course=202410-CS-42600). 0×200-0×270 if you don't have a strong C background.</span></details>
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