The average American gets 14 spam calls a month, and roughly one in three of those calls is an outright scam. Most are obvious — but the dangerous ones aren't. This is the playbook scammers use, and the eight signals that should make you hang up immediately.
1. The number you don't recognize, calling at an odd hour
Legitimate businesses call during business hours. Scammers don't, because they're often calling from time zones eight hours away. If your phone rings at 2 a.m. or on a Sunday morning from an unknown number, the odds it's legitimate are vanishingly small.
What to do: don't answer. If it's important, they'll leave voicemail.
2. Caller ID that doesn't match the claimed organization
A "caller from Microsoft" with a Caribbean number on the display. The "IRS" calling from a +63 line. A "package delivery service" using a number from Bermuda. Spoofing is trivial, but the mismatch is still a tell — real organizations call from real numbers in their own country.
3. Urgency
"Press 1 to avoid arrest." "Your account will be closed in 30 minutes." "Call back immediately or we cannot release the funds." Urgency is the single most reliable scam signal. No real institution operates on a 30-minute deadline.
4. Asking for payment in gift cards, wire transfer, or cryptocurrency
This is the only signal you need. No legitimate organization on Earth — no government, no utility, no bank, no software company — accepts payment in iTunes cards, Amazon gift cards, Google Play codes, Bitcoin, or wire transfer to a personal account. The moment those words come up, hang up.
5. Asking for remote access to your computer
"We need to install a tool to fix the issue." "Just download AnyDesk so we can verify." This is how tech support scams empty bank accounts. Real tech support never needs unsolicited remote access.
6. Threats of arrest, deportation, or lawsuit
Government agencies do not threaten arrest by phone. Police do not call to demand bail money. Immigration does not phone you about visa problems. If a caller threatens consequences for not paying or not complying, it's a scam — full stop.
7. They knew one detail about you
Scammers buy data from breaches. They know your name, your address, and sometimes your last four digits of your SSN. This makes them sound legitimate. The trick is that knowing one detail doesn't prove anything — the test is whether they can verify a detail you give them, not the other way around.
8. Too good to be true
You won a sweepstakes you didn't enter. You inherited from a relative you've never heard of. A stranger fell in love with you online and wants to send you money. None of these things happen.
What to actually do
When you spot any of the above:
- Hang up immediately. Do not engage. Do not "just see what they want." Engagement trains the system that your number is live and worth selling to other scam operations.
- Don't call back. Even to "tell them off." Many scams use premium-rate callbacks; calling back costs you money.
- Block the number in your phone settings or carrier app.
- Report it to the FTC at reportfraud.ftc.gov (US), Action Fraud (UK), or Scamwatch (Australia).
- Tell elderly relatives. Phone scams disproportionately target older people, and many fall victim because no one warned them.
The single most powerful thing you can do is assume any call from an unknown number is a scam until proven otherwise. The cost of missing a real call is low — they leave voicemail. The cost of answering a real scam is high.