Computer security may seem a topic for professionals. But it isn't. It is our responsibility to use computers and other digital devices securely. Only in that case our personal information, personal images, credit card information, etc. will stay safe on our devices. About that and many other topics in Computer Ninja Series. In this volume about some basics: user rights, safe storage of data, mobile devices and safe data disposal.Contents: Advantages of limited user rigts- The rule of minimum rights- Elevate user rights only when needed- The practice is not necessarily different from the theoryStore important data safely- Secure portable devices- Portable storage safety- (Smart)phones- How to effectively destroy. Everything.