[dcaylor]

I think the issues are the same as they always have been. No matter what your platform, you can't trust user input. Your OS has to be as secure as it is reasonable to make it. Obscurity is not security. Security is an onion. Don't store unencrypted passwords. I could go on for days with apparently trite security aphorisms, but we ignore them at our peril. The issues that are raised in the articles linked in other comments here are not new.

People have been showing scary insecurity demonstrations for decades, and they will for decades more. In any given instance it may or may not mean a thing. People have been picking on one or another popular language or platform or database forever as well, and still companies manage to build successful products and businesses on those very tools.

If you are building something people might actually use, you do have a responsibility to weigh the security issues carefully. Don't let that stop you from building something that people will use, in a way and in a time frame that it is viable for to build it.