At this point, if you're still using Yahoo for your email and messaging then you're just asking for no privacy. They just announced another breach of many user accounts.
It's always nice when your boss shows their appreciation to you and other employees, right? Who doesn't like a small gift or even a simple thank you e-mail - something that shows they notice the hard work you do. Well recently Yahoo CEO Marissa Mayer gave every employee one of the best incentives ever!