Scam red flags library
These are the warning signs the checker looks for. Seeing one does not always mean a message is a scam, but several together are a strong reason to slow down and verify. To check a real message, use the message checker. For a deeper explanation of each warning sign, see the red flag library.
Bank/card details request
Bank or card details request
The message tries to collect card numbers, CVV, PIN, or full bank account details.
Your bank will never ask for your full card number, PIN, or CVV by message.
Brand impersonation
Brand impersonation
The message imitates a well-known brand (Amazon, Apple, PayPal, a bank) to seem trustworthy.
Brands do not ask for payment or login via random messages. Verify on the official site.
Business invoice / BEC
Invoice or supplier bank-detail change (BEC)
The message asks to pay an invoice, change supplier bank details, or make an urgent transfer - a pattern used in business email compromise.
Always confirm new or changed bank details by calling the supplier on a number you already hold, never one from the message.
Charity or donation scam
Urgent donation or charity appeal
The message pressures you to donate quickly to a disaster, medical, or charity appeal, often to a personal wallet or link.
Donate only through a charity's official website that you look up yourself - never via a link or wallet in a message.
Crypto request
Crypto wallet or transfer request
The message pushes you toward cryptocurrency, which is fast, irreversible, and hard to trace.
Crypto payments cannot be reversed. Be extremely cautious.
Delivery/customs/tax/toll fee
Delivery / customs / tax / toll / parking fee
A small 'fee' is requested to release a parcel or clear a fine, used to steal card details.
Verify any delivery or fine directly with the official carrier or agency.
Emotional manipulation
Emotional manipulation
The message leans on fear, guilt, excitement, or trust to override your judgement.
Strong emotional pressure is a tactic. Step back before acting.
Fake authority wording
Fake authority / government / bank wording
The message impersonates a bank, tax office, police, or government body to sound official.
Agencies contact you through official channels, not surprise messages demanding payment.
Fake police / digital arrest
Fake police / digital arrest / voice-clone threat
The message or call impersonates police, courts, customs, or a central bank, often demanding secret payment, remote access, or a video call.
Real police and courts never demand secret transfers, gift cards, crypto, or video calls. Hang up and call official numbers yourself.
Gift card request
Gift card request
Requests for gift cards (Apple, Google Play, Amazon, Steam) are an extremely common scam tactic.
No legitimate business, agency, or employer is paid in gift cards.
Investment or trading scam
Investment / trading scam language
The message promotes an investment, trading, or crypto opportunity that promises easy or guaranteed profit.
Legitimate investments never guarantee returns. Verify any platform with your financial regulator before paying.
Lottery or prize scam
Lottery, prize, or reward you did not enter
The message claims you won a prize, lottery, or reward you never entered, then asks for a fee or details to release it.
You cannot win a lottery you never entered, and real prizes never require an upfront payment.
Message-based fraud
Fake or unverified payment claim
The message claims a payment was sent (often with a screenshot) and pressures you to ship or release goods before the money is truly in your account.
A screenshot is not proof of payment. Confirm the money has actually cleared in your own account before sending anything.
Recovery scam promise
Scammers often target victims again by promising to recover lost money, trace a crypto wallet, or force a chargeback for an upfront fee. Real banks, police, and official agencies do not guarantee recovery through private chat payments.
Do not pay recovery fees. Contact your bank, payment provider, or official reporting authority directly.
Move platform
Request to move platform
You are pushed off the original app (e.g. to WhatsApp/Telegram) where there is less protection.
Be cautious when a stranger insists on switching to a private chat app.
OTP or password request
OTP / verification code request
The message asks for a one-time code. Sharing it can let an attacker take over your account.
Never share a verification code with anyone. Real staff will never ask for it.
Password or login request
The message asks you to log in or hand over a password, often via a link.
Never enter credentials from a link in a message. Open the official app or website yourself.
Payment request
Payment request
The message asks you to send money, often quickly or to an unfamiliar destination.
Never pay based on a message alone. Verify through an official channel first.
Poor grammar/formatting
Poor grammar or strange formatting
Spelling, grammar, or formatting errors can indicate a mass-produced scam.
Treat odd wording as one of several signals, not proof on its own.
QR/attachment risk
QR code or attachment risk
QR codes and attachments can hide malicious links or malware.
Do not scan unknown QR codes or open unexpected attachments.
Refusal to verify officially
Refusal to verify through official channels
The sender resists or discourages independent verification through official means.
A legitimate request always survives independent verification.
Remote access request
Remote access request
You are asked to install remote-control software or grant device access.
Never give remote access to your device to someone who contacted you unexpectedly.
Request to keep secret
Request to keep it secret
You are told not to tell anyone, which isolates you from people who could warn you.
Secrecy is a major red flag. Talk to someone you trust.
Romance/emergency story
Romance or emergency story
A relationship or sudden crisis is used to build trust and then ask for money.
Be wary of anyone you have not met in person asking for money or investment.
Sender mismatch
Mismatched sender or domain
The sender or domain does not match the brand or person it claims to be.
Check the exact spelling of the sender address or domain against the official one.
Sextortion threat
Sextortion / threat to leak content
The sender threatens to expose private images or information unless you pay.
Do not pay. Do not reply. Preserve evidence and report it to the authorities.
Suspicious link
Suspicious link
The message contains a link that pushes you to act outside official, trusted channels.
Do not open links in suspicious messages. Type the official address yourself.
Shortened URL
Short links hide the real destination, a common trick to disguise fake sites.
Treat shortened links in unsolicited messages as untrusted.
Tech support / refund scam
Fake support, refund, or security team
The sender claims to be a support, refund, or security team for a well-known company or your bank, steering you toward access or payment.
Companies do not contact you out of the blue to fix your device or refund you. Contact them through their official app or website.
Too-good-to-be-true promise
Too-good-to-be-true promise
Guaranteed high returns, big prizes, or large refunds with little effort are classic bait.
If it sounds too good to be true, it almost always is.
Travel or visa scam
Travel, visa, or booking offer with a fee
The message offers a visa, travel document, flight, or booking, then asks for an upfront processing or clearance fee.
Apply for visas and travel only through official government or verified airline/agency websites you look up yourself.
Unsolicited job offer
Unsolicited job offer
An out-of-the-blue job or task offer, especially with easy money, is a common lure.
Real recruiters do not ask for fees and can be verified on the official company site.
Upfront fee
Upfront fee request
You are asked to pay a fee first to unlock a job, prize, loan, package, or refund.
Paying to receive money or a job is a hallmark of fraud.
Urgency or threat
Urgent or threatening language
The message tries to create time pressure or fear so you act before you can think or verify.
Real organisations rarely demand instant action. Slow down and verify.