Reaffirmed 2021

NATIONAL FOREWORD

This Indian Standard (Part 1) (First Revision) which is identical with ISO/IEC 27033-1 : 2015 ‘Information technology - Security techniques - Network security - Part 1: Overview and concepts’ issued by the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) jointly was adopted by the Bureau of Indian Standards on the recommendation of the Information Systems Security and Biometrics Sectional Committee and approval of the Electronics and Information Technology Division Council.

This standard was originally published in 2013 and was identical with 27033-1 : 2009. The first revision of this standard has been undertaken to align it with the latest version of ISO/IEC 27033-1.

Other parts in this series are:

Part 2 Guidelines for the design and implementation of network security (under print)

Part 3 Reference networking scenarios - Threats + design techniques and control issues

Part 4 Securing communication between networks using security gateways

Part 5 Securing communications across networks using V irtual Private Networks (VPNs) (under print)

The text of ISO/IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.