With summer vacation season right around the corner, here are some social media tips to keep you safe. Like many things in life, it’s important to “know thy enemy.” And here’s the scary truth: 80% of thieves are using social media sites like Facebook, Twitter and Foursquare. So here’s what can you do to keep yourself safe: 1. As tempting as it might be to make your friends jealous by “checking in” at your deluxe resort in the Caribbean, resist the temptation. If you’re in the