Case: "just buy crypto" vs a regular plan

Last year's return is a fact about last year, never a forecast. A coin that rose 300% can fall 75% the next year, and the two don't cancel the way the headline average suggests.

Put 10,000 in: +300% means ×4, so 40,000; then −75% means ×0.25, back to 10,000. Two years, zero growth — yet the simple average of +300% and −75% is +112.5% a year. The bigger the swings, the more the average flatters, because the fall lands on the inflated amount.

And people usually buy after the 300% year, when everyone is talking, so they tend to catch the fall, not the rise. A single spectacular year tells you how volatile something is, not how much it will make you.

A weekly rate sounds small but compounds into the impossible. "2% a week" is not 2% × 52 = 104% a year — reinvested each week it is 1.02⁵² − 1 ≈ 180% a year, nearly tripling the money.

Compare that with reality: in the invented series even the most aggressive option averaged about 6% a year above inflation, with a −28% year in it. A steady, guaranteed 180% is far beyond anything real, which is the tell: the risk is hidden or the "platform" simply isn't an investment.

Whenever an offer quotes a short-period rate — per week, per day — compound it out to a year before judging. The annual figure usually makes the con obvious, as 3% a week would (≈365% a year).

Fake investment platforms follow a recognisable script, and spotting it matters more than any single detail:

• a stranger writes first in a messenger or on social media, with a friendly "personal manager";
• a guaranteed high return (2% a week ≈ 180% a year);
• the screen shows profits climbing, and a small first withdrawal works, to build trust;
• then come bigger deposits, pressure to hurry before an "offer ends", and a "tax" or "fee" to withdraw.

Such offers are on the central bank's list of the most common fraud schemes. Payouts to early clients come from later clients' money — a Ponzi scheme — so it collapses when new money stops.

The opposite of a red flag is boring transparency: a firm you can find in the regulator's licence register, publishing its fee and what it holds. That doesn't make it profitable, but it's checkable, which a messenger "manager" never is.

If money has already gone to a scam, the demand for a "tax" or "fee" to withdraw is not a last hurdle before the payout — it's simply the next payment in the scheme, and paying it loses more. There is no profit waiting.

The right first moves, in order: stop paying; call your bank at once to block transfers and cards, using the number on the back of your card, never one the "manager" sends; and report it to the police on 102 and through the cyber police's online form. The sooner the bank hears, the more it may be able to freeze.

And a permanent rule underneath all of it: never share one-time codes, card numbers, CVV or passwords with anyone, whoever they claim to be. A real bank never asks you to move money to a "safe account" or to read out a code.