How does spam detection happen on the Truecaller app?
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Truecaller spam lists are created by our user community which chooses to report unsolicited calls and SMS messages. By enabling the creation of a spam directory it helps our users to avoid:
Fraud or criminal activity
Abusive or obscene calls
Crank calls
Unsolicited telemarketing calls
Robocalls
Phone spam
Scams (like pyramid schemes, tech-support scams, impersonation of financial institutions)
We collect voluntary spam reports from our users to help protect the community from fraud, crime, abuse, and unwanted calls or messages. When someone blocks a number, they can also suggest a name for the caller or sender. Over time, if a number is repeatedly reported as spam by multiple users, we flag it accordingly. This allows us to alert others when they receive potentially harmful or unsolicited calls or messages.
Apart from blocking and marking numbers as spam, Truecaller also allows users to inform us if the activity associated with a number is not spam. Our algorithms also factor in these positive feedbacks while evaluating if a number needs to be shown as spam/not spam to the rest of the Truecaller user base.
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