Per Blogosphere, BIS is no more secure than Android or iPhone
I have read on Android blogs and other tech blogs that BIS is no more secure than Androids and iPhones. Those sources said you have to have BES to have the great BlackBerry security. Unless you're using your BlackBerry from your employer, chances are good you are not using BES. I think you can use VPN and a couple other secured networks but not BIS. For the consumer BB user, it makes sense to ask for more Android or iPhone like capabilities, because if these tech sources are correct, then they don't lose any security advantage using an Android or iPhone.
By the way, something you really should think about if you overly concerned with security. Hackers don't need the end user to steal from the end user. It much easier to target an unsecured corporate network. So, they go into a regional clearinghouse or some internal network, and steal your sensitive info at a point where you have no control to protect it. Scary world out there. There's been a few major stories in the past several years where this has happened to 100's of thousands of people.