Cryptocurrency user information has been leaked on a large scale, Huobi and Binance have successively issued risk warnings

On August 6, a large number of cryptocurrency users said they received calls from people claiming to be customer service representatives of platforms such as Huobi and Binance, asking them to add WeChat and receive guidance on cryptocurrency trading. It was confirmed that this was a fraudulent call impersonating an exchange, but the source of the information leak remains a mystery.

Impersonating exchange customer service, a large number of users received fraudulent calls

"Binance's user information has been leaked? Someone claimed to be a Binance customer service representative and kept inviting us to participate in the event." A user raised the question in the Binance community yesterday.

He Yi replied, “Recently, there are a lot of people pretending to be Binance, Huobi, OKex, and Bitmain.” She said she “also received inquiries about whether to buy the phone numbers of competing users, but I didn’t take it seriously at the time.”

Many users have complained about receiving similar calls, with the worst hit being those under the banner of Huobi and Binance. The basic routine is: "First, you will be pulled into a group, where so-called teachers will give lectures, and then you will be pulled to some unreliable exchanges to invest in some unreliable coins."

Information leakage or network hijacking? How can the platform prove its innocence?

Did the exchange leak user information? He Yi did not respond directly, but said: "As for whose information was leaked, the best way to identify is that a certain mobile phone number has only been registered on a certain platform." Some users said that their mobile phone numbers were registered on four exchange platforms. But some users said that mobile phone numbers that had never been registered on any platform also received calls.

"It could also be a network hijack by the operator, which has precise user portraits, such as the length of time logged into a website and the traffic consumed. The other party can take the initiative to call, but does not know the user's mobile phone number, so WeChat needs to be added on the phone. If the number is known, it can be added in batches directly." Technical experts analyzed.

It is difficult for trading platforms to prove their innocence in information leaks. Today, there was news that Binance KYC information was leaked. A user nicknamed Guardian M established a live broadcast group "FIND YOUR BINANCE KYC" on Telegram, live broadcasting user KYC information and photos suspected to be leaked from Binance. The suspected KYC information was photos taken on February 24, 2018.

Huobi and Binance have successively issued risk warnings, beware of scams

Such a large-scale information leak cannot be underestimated. On August 5, Binance responded to a user on Weibo, saying: "Scams are emerging in an endless stream, so everyone must be vigilant."

On August 6, Huobi’s official website released a “Risk Warning on Preventing Internet/Telephone Fraud by Impersonating Huobi Official Staff”, stating: “No user information will be leaked to the outside world in any form.” However, judging from the announcement, although Huobi denied forming an investment community such as “teachers leading orders” and “guiding cryptocurrency trading”, it also acknowledged that it had contacted users to join Huobi’s official “Newbie Camp”.