If you have permission then you are not 'hacking'.
If you have permission then you are not 'hacking'.
No.
It is very illegal to hack into anything.Aside from facing the charges that the law enforcement will arrest you for, you will also be sued by both the owner of the account and the website (in this case, Facebook) the account is on.
Yes, hacking someone's Facebook account without their permission is illegal in California. It violates various state and federal laws, including the California Comprehensive Computer Data Access and Fraud Act and the federal Computer Fraud and Abuse Act.
Yes
It is regarded as unethical activity.
Instagram is not illegal.
no, as long as you have permission from the owner, or are friends with the owner. if bot, it will be considered trespassing.
Yes
Putting someone's picture on a shirt is not necessarily illegal. However, to avoid problems, you should definitely get their permission first.
its an invasion of privacy
That would involve certain illegal activities - which we in the Wiki community will not help you with !