Silent Robocalls Verify Active Phone Numbers For Scams
Cybersecurity experts warn that silent or delayed calls are deliberate reconnaissance by fraudsters to verify active phone numbers, according to Keeper Security CISO Shane Barney. Predictive-dialing systems and automated campaigns confirm reachable numbers that can feed phishing, SIM-swap, or voice-cloning attacks. Experts advise hanging up, answering without speaking, using spam-filtering apps like Truecaller, RoboKiller, and Hiya, and strengthening account security.
Scoring Rationale
High practical relevance and credible expert sourcing drove the score, while limited novelty and common scam mechanics constrain impact.
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