[mcpackieh]

No reason such an insurance company couldn't be run in the early/mid 20th century manner, entirely with paper records. Send carbon copies of all documents to two remote locations to eliminate the threat of a fire wiping out the records.

This is easy. It requires you to hire a lot of human clerks, but since the customers are large businesses that means there aren't a whole lot of customers in the first place. And if you can't get enough typewriters, there's no reason the clerk work couldn't be done on computers connected to printers, with all document storage still being done on paper. If the computers get pwned, throw them out and buy new ones; it doesn't matter because the documents weren't being stored on those computers.