Answer:
null
Explanation:
it does not turn to null value. It returns ;
when it reaches the end of the file
Of course there is. On a simple level, consider a parent trying to locate their missing child. Someone might break into their social media accounts to see if there are messages that might help determine their whereabouts.
Consider a website hosting inappropriate pictures of children. Breaking into the server hosting the files and removing them is 100% ethical.
I'm sure you can think of more examples.