I have been using PHP with jQuery so this one caught my attention.
It’s easy to get caught up in the dynamic potential of Ajax. But with innumerable possibilities also comes increased risk. If security isn’t a major concern, it should be.
Consider a registration form built out of PHP. Any aspect of your script that accepts and processes data is a potential point of attack. If you add Ajax, what you’re doing is increasing the complexity of the application and, by extension, introducing greater vulnerability. More points of entry equal a larger attack surface, and that means potential problems for your application.
Get the article here.