In this contemporary world, no one could say that he's totally safe or secured. Whatever you're keeping to yourself might just be taken away from you unconsciously. It's like we're always in a precarious situation, that if you make a misstep, whatever you've worked hard for would be lost in no time.
This message goes out not only to those who are vulnerable but to all, for even the wisest could be deceived. Vigilance matters in all kinds of situations. Take good care of your possessions, take good care of yourself! Have your wits about you!