The promise: Four words that should make you run

A message arrives. Twelve per cent a year, guaranteed, risk-free. Only forty-eight hours left. Reserved for a few clients.

Every word in this message is an alarm bell. Let's take them one by one.

First word: guaranteed. In honest finance, a high return is never guaranteed.

A regulated passbook is guaranteed, yes. But it pays little, and its rate is set by the state.

As soon as much more is promised, and guaranteed, the promise disqualifies everything else that is said.

Second word: risk-free. There is a risk-free rate: what a loan to a solid state pays.

Say it is three per cent. Anything paying more carries a risk. That is the price of the extra.

Twelve per cent is four times the risk-free rate. Nobody pays that for no reason.

If this investment really existed, every bank would buy it, and it would be gone within an hour.

In the app, this chapter is animated and narrated, card by card. Start free trial.

For the example, ten thousand euros at twelve per cent: eleven thousand two hundred euros after a year.

And seventeen thousand six hundred and twenty-three euros after five years. At the risk-free rate, barely eleven thousand six hundred.

The difference makes you dream. That is exactly its job: to make you forget to ask questions.

Third word: urgent. Only forty-eight hours left, places are going, decide tonight.

A real investment will still be there next week. The urgency is manufactured, always.

It serves one purpose: to stop you checking, talking about it, sleeping on it.

Fourth word: reserved, or confidential. You have been chosen. Tell nobody.

It is flattery. And it has a precise aim: to cut you off from those who would say no.

A partner, a friend, a banker would ask the killer question. Secrecy pushes them aside in advance.

The twist: in the first months, everything often works. The interest arrives, right on time.

It is paid with the money of those who come next. That is what makes the victim confident, then generous.

So they put in more. They tell their loved ones. And the day they want to withdraw, nothing is left.

Remember the rule. Just one of these four words is enough to end the conversation.

Guaranteed, risk-free, urgent, confidential. Together, it is not an offer. It is a trap.