This three-volume set LNCS constitutes the proceedings of several Satellite Workshops held in parallel with the 23rd International Conference on Applied Cryptography and Network Security, ACNS 2025, held in Munich, during June 2025.

The 43 full papers and 9 poster papers presented in this volume were carefully reviewed and selected from 87 submissions. They stem from the following workshops:

· 6th ACNS Workshop on Artificial Intelligence in Hardware Security (AIHWS 2025)

· 7th ACNS Workshop on Artificial Intelligence and Industrial Internet-of-Things Security (AIoTS 2025)

· First Workshop on Quantum-Safe Hybrid Cryptography (QSHC 2025)

· 6th ACNS Workshop on Secure Cryptographic Implementation (SCI 2025)

· First International Workshop on Foundations and Applications of Privacy- Enhancing Cryptography (PrivCrypt 2025)

· First Workshop on Secure Protocol Implementations in the Quantum Era (SPIQE 2025)

· 7th ACNS Workshop on Security in Machine Learning and its Applications (SiMLA 2025)

· 5th ACNS Workshop on Critical Infrastructure and Manufacturing System Security (CIMSS 2025)