In this article we will learn about the one of the most overlooked spoofing mechanisms, known as right to left override (RTLO). What is RTLO? RIGHT TO LEFT OVERRIDE is a Unicode mainly used for the writing and the reading of Arabic or Hebrew text. Unicode has a special character, U+202e, that tells computers to display the text that follows it in right-to-left order. This vulnerability is used to disguise the names of files and can be attached to the carrier like email. For example, the file name with ThisIsRTLOfileexe.doc is actually ThisIsRTLOfiledoc.exe, which is an executable file with a U