Last year, data was leaked on the canadian trading platform. Now hackers have promised to steal funds from users ' accounts using SIM-card substitution

Hackers who have access to the data of customers of the canadian crypto exchange CoinSquare, promised to hack it using SIM-card substitution. The statement of one of the attackers was published by Motherboard. Last year, there was a data leak on the trading platform. After that, the company changed its data management system and strengthened its internal controls.

Then it turned out that the leak could have been much more extensive. The company denies security problems. Hackers planned to sell the exchange's customer data in the darknet, but later announced their intention to use it to steal cryptocurrency from users ' wallets.

"We will disgrace a company that called itself the most secure exchange in Canada, but lied," said one of the hackers.

He also gave Motherboard a part of the database containing more than 5,000 addresses and emails of users, phone numbers, in some cases physical addresses, and information about the amount of assets credited to exchange accounts within six months. There are no passwords in the list, but the publication found that CoinSquare accounts were actually registered to the specified email addresses.

For the first time, it became widely known about the method of hacking the SIM card in October last year. Then entrepreneur Michael Turpin, who thus lost about $24 million, sent a letter to the us Federal communications Commission with proposals for methods to combat a new way of stealing cryptocurrency