Your boss might not care so much that you're on Facebook at work these days. What they might care about is Facebook spreading malware onto work computers or getting too much information.
Security firm Sophos polled about 500 firms and found out 60 percent of them felt Facebook was the biggest threat to their security. Experts say Facebook is a security risk because of several reasons. Malware can be spread on the site. Employees who aren't web-savvy may open that malware. Also, workers can put a company at risk by giving up too much information about the business.