Digital currency exchanges Binance and Huobi have again frozen accounts linked to the $100m hacking of Harmony Horizon Bridge in June of last year.

Frozen by the trading website, its login password worth about $1.4 million comes from accounts related to the notorious Lazarus Group, which operates in North Korea.

According to the blockchain technology analysis enterprise Elliptic shared a report on February 14, the survey was conducted through the enterprise. However, the company did not indicate that any coins or tokens were frozen.

Elliptic explained that this passed the information to Binance and Houbi, which then acted quickly, freezing Lazarus Group-related accounts:

Stolen funds have been in dormant mode until recently, when our own investigators gradually saw them flow into exchanges according to a complex trading chain. According to the illegal savings of such platforms, they can suspend such accounts and freeze funds. "

Since the loophole in the application system of Harmony, there is sufficient data to show that Lazarus Group has sought from Tornado Cash, a personal privacy mixer approved by OFAC in the United States, in an attempt to trace the clues of the sale and purchase case back to the initial theft.

While this will actually make it easier to TX money on the exchange, Elliptic investigators can track all stolen funds uploaded under the mixer in this case, the report said.

According to EllipticCEO Simon Mini, this shows that the field has taken on the responsibility of avoiding money laundering and preventing data encryption from becoming a "spiritual haven" for illegal activities:

Today, money laundering was cracked and stolen funds related to North Korea were immediately frozen. As an area, we have the right and responsibility to prevent digital money from becoming a haven for the hearts of money launderers and those who evade the ban, so as to ensure that they are a force for good.

On January 24th, the US fbi attributed the attack on the Harmony overpass to the Lazarus Group.

This is not the first time Binance and Huobi have been in contact with each other on this matter.

On January 16th, the two service platforms successfully frozen and recovered 121 BTC (BTC), which was worth $2.5 million at that time, related to the Harmony attack.

But according to password Detective ZachXBT, this large sum of money is only a fraction of the $63.5 million cleared on a Sunday. He claimed that the money was delivered by rail guns under the privacy agreement of Etay Fong and then sent to three different types of exchanges:

Elliptic's latest release of diligence last week also found that Lazarus Group laundered about $100m of BTC under "Sinbadd", which they claimed was another release of Blder, a privacy mixer approved by OFAC.

According to Elliptic, Lazarus Group is said to have stolen well over $2 billion in login passwords since it was fully converted into the field in 2017.