Samsung and iPhone users can quickly check unknown numbers, avoid receiving missed international calls, or fall victim to scams that cost them money.
Báo Khoa học và Đời sống•12/03/2026
Many scammers often make missed calls and then hang up to trick users into calling back. When you call back, the call may connect to an international number with high charges.
To avoid risks, users should verify unknown numbers before contacting them again. The Truecaller app helps identify phone numbers and effectively alerts you to spam.
Alternatively, you can look up unknown numbers through online services like Whitepages. If in doubt, users can report spam or scam calls to the number 156. Be especially wary of unfamiliar international numbers such as +224, +231, +252, and +243.
Instead of calling back immediately, check the information using a lookup tool to protect your account. Readers are invited to watch the following video : Experts warn of serious vulnerability on iPhone, millions of devices at risk of attack.
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