Greece Arrests 17 Over Alleged $8 Million Crypto Investment Fraud
Key Takeaways
- •Greek police arrested 17 suspects, including two alleged leaders, in connection with a suspected pyramid-style cryptocurrency scheme, while nine additional individuals were named in the case file but not arrested.
- •Investigators estimate the scheme attracted at least 10,000 participants and generated $8 million by promising investors their money would double within 50 days with little or no risk.
- •The operation allegedly lacked the regulatory authorization required for offering investment or crypto-asset services in Greece and the EU, and investor withdrawals were eventually blocked.
- •A preliminary investigation identified 18 alleged victims with combined investments of €55,970, a figure authorities said covers only the initial phase of the inquiry.
- •Coordinated searches across several Greek regions led to the seizure of about €295,000 in cash along with mobile phones, computers, storage media, bank cards, and SIM cards.

Greek authorities have arrested 17 people in connection with an alleged cryptocurrency investment scheme that investigators estimate attracted at least 10,000 participants and generated about $8 million. The arrests followed a months-long investigation led by police in Katerini, in northern Greece.
Authorities allege that the group operated a pyramid-style investment network through an online platform and seemingly legitimate business structures. In such structures, payouts to earlier participants typically depend on funds from new recruits rather than on profits from any underlying trading activity. The suspects allegedly promised investors that their money would double within 50 days, with little or no risk.
How the alleged crypto scheme worked
Investigators say the operation relied heavily on recruiting new investors. Participants who brought in additional members allegedly received bonuses, creating incentives to expand the network.
The scheme reportedly presented cryptocurrency trading as the source of its returns. However, investigators allege that the organization lacked the authorization required for the investment activity. Across the EU, including Greece, firms offering investment or crypto-asset services to the public are generally required to hold regulatory authorization and remain subject to supervision.
According to police findings reported by local authorities, withdrawals were eventually blocked, leaving investors unable to recover their initial funds and prompting increased scrutiny of the platform.
The preliminary investigation identified 18 alleged victims who had invested a combined €55,970 — a fraction of the at least 10,000 participants investigators estimate took part in the network. Authorities stressed that this figure covers only victims identified during the initial phase of the inquiry and does not establish the total number of affected investors.
Police seize cash and electronic equipment
Police conducted coordinated searches across several Greek regions, targeting offices, homes and other premises connected to the investigation.
Authorities seized about €295,000 in cash along with numerous electronic devices and storage media, including mobile phones, laptops, desktop computers, tablets, USB drives, hard disks, bank cards and SIM cards.
The arrests include two people whom investigators suspect held leadership roles in the alleged network. Nine additional people have been named in the case file but were not among those arrested. The suspects were brought before prosecutors in Katerini and referred to investigating authorities.
The case remains ongoing, and the allegations have not been established in court. The investigation, reported by Greek daily Kathimerini, highlights the risks surrounding investment platforms that promise unusually high or guaranteed cryptocurrency returns. Such claims can attract large numbers of participants before investors discover that withdrawing their funds may be difficult or impossible.