Boost Security: SIM Swap Prevention with Phone Intelligence

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SIM swap fraud occurs when criminals persuade or exploit mobile carriers to transfer a victim’s phone number to a SIM card they control, allowing them to intercept calls and SMS-based two-factor authentication to access banking, email, and social media accounts. Preventing these attacks requires a layered approach using phone intelligence, including real-time HLR lookups to identify recent SIM changes, carrier ports, inactive numbers, or unexpected roaming activity, alongside device and behavioral signals such as IP location, device fingerprints, browser details, and interaction patterns. Businesses can apply these checks during onboarding, login, account recovery, password resets, and high-value transactions, escalating to stronger verification such as biometrics or app-based authentication when risks are detected. Didit presents its platform as a tool for combining HLR lookup, IP and device analysis, phone verification, fraud scoring, and customizable identity workflows to detect suspicious activity early, reduce fraud risk, and strengthen customer trust, while noting that phone intelligence is most effective when paired with broader security measures.

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