That's what CTech says:
"Israeli startup Cydome Security aims to address this exact issue, providing a cyber solution to seamlessly safeguard the maritime IoT ecosystem. The company's solution is designed for systems including guidance, sensors, control, command, communications, and links to coastal infrastructures.
Cydome provides end-to-end security from the kernel level using data and network isolation and offers rapid and automatic threat detection and protection."
Excited to share this news with you!
Other startups on the list you will find in the article: https://www.calcalistech.com/ctechnews/article/s1scn00mc5