Short answer: your name, number, and address are easier to find than you think. Scammers buy them, find them in leaked data, or look them up online. A caller who knows your name has not proved anything. It's an old trick to make you trust them.
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Where scammers get your details
- Data breaches. When a shop, phone company, hospital, or app is hacked, names, phone numbers, emails, and addresses often leak. That data is then sold and traded between criminals.
- People-search websites. These sites build profiles from public records, social media, and other data sellers, then sell them to anyone willing to pay. The US Federal Trade Commission says the reports can include your age, past addresses, relatives' names, and work history.
- Public records. Property records, voter lists, business registrations, and court records can all include your name and address.
- Social media. Your name, photo, workplace, town, friends, and even your pet's name may be visible to anyone.
- Your own answers. Some calls exist only to check that your number is real, or to get you to say your name. A reply to a scam text does the same.
Each source might hold only a small piece of your information. Put together, they can build a surprisingly complete picture, which is why a stranger may know your name, your street, or the bank you use.
Knowing your name is not proof of anything. Scammers use personal details on purpose, because it makes you think, "They must be real, they know who I am." A real bank, police force, or delivery company is proved by calling them back on a number you find yourself, never by what the caller knows.
What to do when a stranger knows your name
- Don't confirm anything. Don't give your date of birth, address, codes, card numbers, or passwords, even if they already seem to know some of it.
- Hang up or stop replying. Then contact the company or organization yourself, using a number from its official website or the back of your card.
- Never move money or share a code because someone "knows your details". That is exactly the pressure the scam relies on.
How to make your details harder to find
- Lock down your social media. Set profiles to private where you can, and hide your phone number, birthday, and friends list.
- Opt out of people-search sites. Most have a free removal form. Search your name on each site and follow its opt-out steps, and repeat every few months, because data can reappear. Paid services can do this for you.
- Check if your email was in a breach, and change any passwords you used on those sites.
- Share less when you sign up. Leave optional fields empty and think twice before giving your phone number for a discount.
- Turn on two-step verification for your email, bank, and social media, so leaked details alone can't get anyone into your accounts.
The rule is simple: a stranger who knows your name has done some homework, nothing more. Trust is earned by calling them back on a number you found yourself.
Sources: FTC: What to know about people search sites that sell your information · Aura: How do scammers get your information?
Want the full playbook?
This is one trick out of dozens. The Scam-Proof Playbook covers impersonation calls, phishing, identity theft, protecting your privacy, and more, in plain language, with real examples.