diff --git a/LoggerPlusPlus.md b/LoggerPlusPlus.md
new file mode 100644
index 0000000..fe849e5
--- /dev/null
+++ b/LoggerPlusPlus.md
@@ -0,0 +1,88 @@
+# Logger++ (BurpSuite Extension)
+Logger++ is a multithreaded logging extension for Burp Suite. This extension allows advanced filters to be defined to highlight interesting entries or filter logs to only those which match the filter.
+
+-----
+**Detect API Endpoints**
+* REST/RPC
+  * `Request.Path CONTAINS "api" or Request.Host CONTAINS "api"`
+    * Example: /api/v1/users, api.target.com/v1/users
+  * `Request.Path CONTAINS "v1"`: Change the "v" based on logged requests
+* GraphQL
+  * `Request.Path CONTAINS "graphql"`
+    * Example: /api/graphql
+
+-----
+**API Operations**
+* REST
+  * Read (Example: GET /api/users)
+    * `Request.Method == "GET"`
+  * Create (Example: POST /api/users)
+    * `Request.Method == "POST"`
+  * Update (Example: PUT /api/users/1)
+    * `Request.Method == "PUT"`
+  * Delete (Example: DELETE api/users/1)
+    * `Request.Method == "DELETE"`
+  * Create, Update, Delete
+    * `Request.Method IN ["POST","PUT","DELETE"]`
+  * API Endpoint + Different API Operations (Example: GET /v1/users)
+    * Filter GET Requests in this API: `Request.Method == "GET" AND Request.Path CONTAINS "v1"`
+ 
+* GraphQL
+  * Read (Query)
+    * `!(Request.Body CONTAINS "mutation" or Request.Body CONTAINS "subscription")`
+  * Create, Update, Delete (Mutation)
+    * `Request.Body CONTAINS "mutation"`
+
+-----
+**Cheat Sheet for finding API vulnerability by logger++ filters**
+
+* **SSRF**
+  * `(Request.Query MATCHES ".*(http%3A%2F%2F|https%3A%2F%2F)?(www.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}.*" OR Request.Body MATCHES ".*(http%3A%2F%2F|https%3A%2F%2F)?(www.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}.*")`
+
+* **Open Redirect**
+  * `(Request.Query MATCHES ".*(http%3A%2F%2F|https%3A%2F%2F)?(www.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}.*" OR Request.Body MATCHES ".*(http%3A%2F%2F|https%3A%2F%2F)?(www.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}.*") AND Response.Status IN [301,302]`
+
+* **API Key Disclosure**
+  *  `Response.Body CONTAINS "apiKey" AND Response.Headers CONTAINS "application/javascript"`
+ 
+* **Broken Authentication (Token-Based Authentication)**
+  * `Request.Headers CONTAINS "Authorization"`
+ 
+* **CORS**
+  * `!(Request.Headers CONTAINS "Authorization: JWT") AND (Response.Headers CONTAINS "Access-Control-Allow-Credentials" OR Response.Headers CONTAINS "Access-Control-Allow-Origin")`
+
+* **Excessive Data Exposure**
+  * `Request.Method == "GET" AND Response.Body CONTAINS "FIELD"`
+ 
+* **XSS**
+  * **Check for reflected parameters**
+    * `Response.Reflections > 0`
+   
+* **Lack of Resources and Rate Limiting**
+  * DOS
+    * REST: `Request.HasGetParam == true AND Request.Query CONTAINS "limit"`
+    * GraphQL: `Request.Body CONTAINS "limit"`
+
+* **Mass Assignment**
+  * The API takes data that client provides and stores it without proper filtering for whitelisted properties
+    * a. Find the API objects
+      * Example:
+        * /api/users: User Object
+        * /api/products: Product Object
+        * /api/items: Item Object
+    * b. Find the object properties from GET Requests. Use the following filter to do this:
+      * `Request.Method == "GET" AND Request.Path CONTAINS "ResourceName"`
+        * Example: `Request.Method == "GET" AND Request.Path CONTAINS "user"`
+    * c. Add object properties from the previous step to related POST/PUT requests. Use the following filter:
+      * `Request.Method IN ["POST","PUT"]`
+
+* **Injection and Broken Object Level**
+  * REST/RPC
+    * Path Parameters
+       * Example: /api/posts/1
+    * Query String Parameters
+      * `Request.HasGetParam == true`
+    * POST/PUT Request Parameters
+      * `Request.Method IN ["POST","PUT"]`
+  * GraphQL
+      * `Request.Body MATCHES ".*variables\":{.*"`