How to recognize investment scams: 5 warning signs to stop and check

How can you recognize an investment scam?

To judge whether an investment offer looks suspicious, look at three things: how the return is promised, how much pressure you are under to send money, and whether you can verify who receives the money and what the asset actually is. One warning sign is not enough to conclude that someone is running a scam. It is enough to stop before you transfer money or share any personal information.

Legitimate investments can lose money too. And an offer that looks professional, or has already paid out a small amount, can still be suspicious. The point of checking is to avoid handing over money while key information is missing. You are not trying to reach a legal verdict yourself.

Five signs to stop before you send money

1. Very high returns described as almost risk-free

Be careful when the person making the offer talks only about returns, promises you cannot lose, and avoids explaining what your money will actually be used for. Expected return is not a guaranteed return. Even a genuine "guarantee" only means something if you know who is obliged to honour it, under what conditions, and with what financial resources behind it.

Promises of guaranteed returns or a risk-free opportunity are warning signs, not evidence that the investment is any good. (This red-flags checklist is published by Investor.gov, the investor education site of the US Securities and Exchange Commission.)

2. Pressure to decide right now

"Today only", "transfer first, read the details later", or a stream of reminders to hurry can push you into skipping your checks. FOMO, the fear of missing out, is exactly the feeling that time pressure tends to exploit.

A deadline does not prove a scam on its own. But if you are not given time to read the documents, ask someone independent, or think it over properly, do not let that deadline make the decision for you.

3. Crowds, friends, or testimonials used in place of information

The size of a group chat, screenshots of profits, or "my friend already got paid" tell you nothing about whether the asset exists or where the money really comes from. Knowing the person who introduced the offer does not replace checking the investment itself.

Keep your trust in the person separate from the evidence about the product. A friend or relative may sincerely believe in an offer they have not checked either. Do not treat testimonials as a reason to skip the questions that still have no answer.

4. You cannot verify who runs it or what the product is

You need to know who you are dealing with, which legal entity you are signing a contract with, how the money will be used, and what the conditions are for withdrawing it. A polished website, a familiar logo, or documents sent to you in a chat message do not prove any of that is real.

Cross-check through independent sources. Find the official channels of the organization mentioned yourself, contact it through the details listed there, and check with the regulator responsible for that type of activity. Do not rely only on links sent by the person inviting you. The fact that a company is registered also does not, by itself, mean every money-raising activity it runs is permitted.

For securities in Vietnam, you can search for a firm's name in the securities business activities section of the State Securities Commission of Vietnam website (in Vietnamese) to see its licensing decision. Our lesson on how to choose a securities company and open an account has a more detailed checklist.

5. Something is unusual about the payment or the information requested

Stop if the name of the person or account receiving your money does not match the entity you are supposedly dealing with, and there is no explanation you can verify. Stop as well if you are asked for passwords or one-time passcodes (OTPs), asked to install a remote-access tool on your device, or told to transfer more money to "unlock" your balance.

Never share login details or verification codes to prove that you are a serious investor. A number shown on a screen is not proof that the money really exists or that you can withdraw it.

An example: why a small payout is not proof

A hypothetical example: An is invited to join an investment. Many people in the group post screenshots of the profits they have received, and after the first transfer An manages to withdraw a small amount. The person who made the invitation then pushes An to invest more, and later asks for an extra "verification fee" before the larger balance can be returned.

The small withdrawal makes the offer look more trustworthy, but it does not answer where the money comes from or who is responsible for the larger amount. An should stop making further transfers and check the offer independently. The money already put in is not a reason to keep going.

Warnings issued in Vietnam describe the same trust-building tactic of showing balances and allowing early transactions (this page, from Vietnam's Ministry of Public Security, is in Vietnamese). The example above only illustrates the warning signs. It does not describe or reach any conclusion about a specific platform.

What to stop and check

Before you hand over any money, ask yourself:

• Can I explain, in simple words, the asset or activity that is supposed to generate the return?

• Do the person receiving the money, the party named in the contract, and the organization being promoted all match?

• Has the information been checked through independent sources, or does all of it come from the person inviting me?

• Are the risks, costs, and withdrawal conditions clearly set out in writing?

• Can I say no, or take more time, without being pressured?

If you do not have reliable answers yet, simply do not send any money. Do not use a small deposit as a test to prove the offer is safe. No short checklist can identify every type of scam.

What to do first if you have already sent money

Stop sending more money and stop sharing sensitive information. Keep the messages, documents, website addresses, and transaction receipts. In Vietnam, you can start with these steps:

• Contact the bank or payment provider you used right away. Find its support number yourself, in its app, on its official website, or on the back of your card, rather than using a number supplied by the person who invited you to invest. Report the suspicious transaction, and ask about the dispute process and whether the bank can help recover the transfer. If your login details or authentication method have been exposed, ask how to lock or suspend the affected services. Locking your own account does not bring back money already transferred, and freezing the receiving account is not something a caller can decide on your behalf.

• Report the case to your nearest police office, such as the commune or ward police where you live or where the transaction took place. Bring your receipts, account statements, screenshots of messages, and any details about the people involved so that a case file can be opened.

• Be wary of online services offering to "recover money lost to scams". These are often a continuation of the scam, known as a recovery scam, that targets victims' wish to win their money back. An outside person or service cannot reach into the banking system and retrieve money you have transferred.

If you suspect you have been scammed, the police or a qualified legal professional are the right people to contact.

Next step

Recognizing a scam starts with refusing to believe the promise of "high returns, no risk". Yet even a legitimate, transparent investment can still lose money, which raises the next question: how much loss can you actually bear? The next lesson explains the difference between your financial ability to take risk and the level of risk you are willing to accept, so you can decide that before putting money anywhere.

Continue the main path: Risk capacity vs. risk tolerance: what’s the difference?

Back to the core lesson: Investment risk and return: understanding the trade-off

This content is for personal finance education only and does not constitute personalized investment advice. Consider your own goals, time horizon, ability to bear losses, and financial circumstances before investing.