This book constitutes the refereed proceedings of the 5th International Conference on EISA--Emerging Information Security and Applications, EISA 2024, held in Changzhou, China, during October 18–19, 2024.The 15 full papers and 3 short papers included in this book were carefully reviewed and selected from 52 submissions. The topics covered adversarial techniques, intrusions that may threaten the security of various assets, including information and applications, have become more complex.