How to block and reduce robocalls without using data-harvesting third-party apps

Robocalls are a menace to modern society. So you resort to a third-party app to block them and all's well, right? Actually, no. As it turns out, many popular robocall-blocking apps such as TrapCall and Truecaller don't have your best interests in mind. According to TechCrunch and Dan Hastings, a security researcher at NCC Group, many top robocall-blocking apps share your phone number with analytics firms and uploading device information such as device type and software version to companies like ...