Can e.g. banks and insurance companies eventually run all their networks/data on (different layers/rollups) on ethereum?

Hi all,

This morning I had a chat with my dad who works at the insurance department of a big national bank. He talked about how banks and the insurance department are extremely afraid of hacks, ransomware and so on. They pay a lot of money to cybersecurity companies and pay a lot for insurance against cyberhacks. He said that they are looking into e.g. blockchain technology to see if that can help them.

Now, I'd love to hear critique from you guys on what I told him.

I told him (roughly) that the ethereum network is an exceptionally safe network on which many addons (programs running smart contracts, rollups) can be developed with varying levels of security, scalability etc that allows you to fragment data/aspects of your company and store / process it on the various layers/rollups on the ethereum network (depending on your needs and considering things like gas fees, transaction speed etc) to have your information in an exceptionally safe space from hacks / cyber attacks.

Is this somewhat a realistic depiction of future possibilities of ethereum in relation to cyber/data security or are there better and different angles?

Thank you in advance for your thoughts!!