Communications and personal information that are posted online are usually accessible to a vast number of people. Yet when personal data exist online, they may

The whirlwind of social media, online dating, and mobile apps can make life a dream—or a nightmare. For every trustworthy website, there are countless jerks,

The Internet is great—until someone hacks your accounts or otherwise violates your privacy. This expert book provides a thorough and up-to-date overview of th

Who’s watching you online? These days, it’s hard to be sure. But the recent Edward Snowden revelations of NSA data mining and the constant threat of identit