You may be approached after having expressed interest in an advertisement published on social media or other websites that sings the praises of cryptocurrencies. If you click on such an advertisement, you will be asked to fill in a contact form with your email address and phone number. In the next few days, you will first receive a phone call from a telephone salesperson, who will offer you some explanations of cryptocurrencies and direct you to his or her ‘company’s’ website.a very high rate of return, often around 8% per month (sometimes even more!);always verify the identity of the company (company name, home country, etc.). If a company cannot be clearly identified, it should not be trusted.always ask your interlocutor for clear and comprehensible information, and take a critical attitude to the information they provide.be wary as well of (promises of) completely disproportionate returns. Where a return seems too good to be true, it usually is.