diff --git a/Top-Immunefi-Vulnerabilities/aurora.md b/Top-Immunefi-Vulnerabilities/aurora.md
index 2200f03..63bfb02 100644
--- a/Top-Immunefi-Vulnerabilities/aurora.md
+++ b/Top-Immunefi-Vulnerabilities/aurora.md
@@ -14,6 +14,15 @@
 
 * Most bridges implement "IOU" approcah: users send funds to the bridge protocol, where those funds are locked by the bridge smart contract. The bridge then issues the user an equivalent asset on the second network from the second bridge smart contract. The tokens on the destination chain are wrapped tokens. Bridges accumulate a lot of funds.
 
+<br>
+
+### `DELEGATECALL` vs. `CALL`
+
+
+<img width="914" alt="Screen Shot 2022-06-08 at 8 29 36 PM" src="https://user-images.githubusercontent.com/1130416/172758401-b10c11fe-8fb4-42bf-b3be-3ffc4682ef9a.png">
+<img width="929" alt="Screen Shot 2022-06-08 at 8 29 55 PM" src="https://user-images.githubusercontent.com/1130416/172758414-6a6d531d-dc6c-4507-b0cf-6cd63e4d0858.png">
+
+
 <br>
 
 ### Aurora