Book excerpt: As the number of digital devices used in daily life grows, it comes as no surprise that the next step in technological evolution is to conveniently interconnect these devices. This is where the Internet of Things fits in. The Internet of Things refers to all devices that are connected to the internet and share data on it, but there are numerous applications for this technology, ranging from smartphones to driverless cars. Despite the convenience smart devices offer, they also raise significant concerns about data privacy and security. Readers will encounter contrasting viewpoints on this timely and evolving issue.