ISO/IEC INTERNATIONAL STANDARD 27035-1 Second edition 2023-02 Information technology Information security incident management- Part 1: Principles and process Technologies deI'information-Gestiondes incidents de sécurité de I'information- Partie 1: Principes et processus Reference number IEC IS0/IEC27035-1:2023(E) 4 IS0/IEC2023 IS0/IEC27035-1:2023(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC2023 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic ormechanical, including photocopying,or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below orIso'smemberbodyinthecountryoftherequester. ISo copyright office CP 401: Ch.de Blandonnet 8 CH-1214Vernier, Geneva Phone: +41 22 749 0111 Email:copyright@iso.org Website:www.iso.org Published in Switzerland ii IS0/IEC2023-All rights reserved