How are these places insured against industrial accidents?

I wonder if the way to get your foot in the door would be to partner with an insurer who would provide discounts to the client if they installed security technology meeting a certain standard. You could come up with some kind of bump on the wire type Linux device that proxied access to the old insecure system bringing them up to the standard. Then sell it as a return on investment through savings on industrial accident insurance premiums.