This isn't realistic. The cost would be astronomical for a 5MM insurance policy on each user. Further, no matter how seriously you take security there's always

This isn't realistic. The cost would be astronomical for a 5MM insurance policy on each user. Further, no matter how seriously you take security there's always a chance, even if a minimal one, that a hack happens. So, for example, if you were a bank and had 100,000 members and you had their SSN's and were hacked you're talking about a possible $500B settlement. The bank wouldn't take out such a policy due to cost and no underwriter would grant it because it would put the company out of business.