What convinces is conviction. Believe in the argument you're advancing. If you don't you're as good as dead. The other person will sense that something isn't there, and no chain of reasoning, no matter how logical or elegant or brilliant, will win your case for you.
Android was built to be very, very secure.
You have principles. You test them as accurately as you can. Eventually, they might break down.
For un-subscribe please check the mail footer.