A security consultant for the cybersecurity firm NCC Group took a look at some of the most popular robocall-blocking apps, and found a number of privacy violations, TechCrunch reports.
According to the firm, those apps are in violation of Apple’s guidelines which require an app to gain permission from a user before it sends any data to third parties.
Robocalls are becoming an increasingly larger problem for cell phone users. In June, the Federal Communications Commission (FCC) voted to allow companies to block robocalls by default.
All of the major carriers in the United States currently offer some form of robocall blocking; however, customers have to opt-in for those services. The new FCC regulations allow carriers to block those calls without a user expressly opting in for them to do so — though some wireless providers will now charge you for the privilege.