Spyware monitors, logs, and sends important information from the target device to the attacker's server. This information might be comprised of SMS messages, recorded phone calls, screenshots, keylogs, emails, or any other application data that may be of interest to the attacker. An interesting example is BusyGasper, identified by Kaspersky Lab experts in early 2018. It not only possesses common spyware capabilities, such as collecting information from popular messаging applications, such as WhatsApp, Viber, and Facebook, but it also has device sensor listeners, including motion detectors.