I saw in one of the short-term threads that a security researcher warned that Model S was not secure enough over Internet. One response was that brokerage accounts are also one password away from being compromised. I'm sure many people have brokerage and retirement accounts that are worth much more than their car. What are good ways to ensure the security of those accounts? Keeping software and antivirus up to date are the obvious steps to take. However, I think it's a given that large software systems are going to have security bugs. The only thing I can think of is to constantly monitor accounts for unusual activity.