Overview: -- Proxies -- Vehicles of Data Transfer -- Input Validation :: Proxies :: -- Tool(s) -- ZAP "Lets us view data between the app n server" :: Vehicles of Data Transfer :: GET/POST parameters & response Headers Coolies Forms: -- Text -- Hidden fields [In BURP: Proxy > Options > Response Modification (Section) > Unhide Hidden Form Fields] Buttons Submits Scripting languages (JS) :: Input Validation :: All input is evil. ~sMichael Howard XD lololololol TNO: Trust No One Length, data types, empty or not, etc...