A web site that allows users to enter text, such as a comment or a name, and then stores it and later displays it to other users, is potentially vulnerable to which kind of attack? *

1- Cross-site scripting

2- Two-factor authentication

3- Cross-site scoring scripting

4- Cross-site request forgery

____________________ are the program which run at a very low level access and focus on hiding themselves. *

1- Trojans

2- Rootkits

3- Worms

4- Virus