There is nothing fun about malware or ransomware, and these can leave you insane and abused. But Stalkerware is specifically designed to know where you are physically. In many cases, stalkers know exactly what you are doing and when. A popular app uses GPS to track the location of a phone, gives you a complete log of all calls sent and received, and even shows you text messages and a web activity. This information is available online after creating a free account.