This document discusses OSI layered based attacks and information security basics. It appears to be written by Syed Ubaid Ali Jafri and focuses on network attacks that target different layers of the OSI model. The document aims to provide an introduction to OSI layered network attacks and basic information security concepts.

1. OSI LAYERED BASED ATTACKS
AN INFORMATION SECURITY BASIC
BY
SYED UBAID ALI JAFRI