Hackers have attacked the leading Japanese cryptocurrency exchange Liquid, and it is estimated that almost 100 million dollars have been stolen.
The company announced that some of their digital wallets were "compromised".
This is the second major cryptocurrency theft to occur in the past few days.
Last week, $600 million was stolen from digital token platform Poly Network (poly network).
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"We regret to announce that Liquid's 'warm' wallets are at risk, we are moving funds to a 'cold wallet,'" the company announced on Twitter.
So-called "warm" or "hot" digital wallets operate online and are designed to give users easier access to cryptocurrencies, while "cold" wallets are not connected to the Internet and are harder to access, so they are usually more secure.
The blockchain analytics company Eliptik states that their research showed that around $97 million in cryptocurrencies, including Bitcoin and Ethereum tokens, were stolen.
The Liquid company stated that they monitor the movement of stolen cryptocurrencies and work with other exchanges to freeze and recover assets.
Founded in 2014, Liquid operates in more than 100 countries and serves millions of customers worldwide.
According to the KoinMarketKep website, Liquid is one of the 20 largest cryptocurrency exchanges in the world by daily trading volume.
Last week, $600 million was stolen from digital token platform Poly Network by a hacker exploiting a weak point in the system.
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"The amount of money you hacked is one of the largest in the history of decentralized finance," Poly Network said.
Since then, the hacker, who calls himself Mr. White Hat, has returned about $427 million.
Liquid isn't the only Japanese cryptocurrency platform to get ripped off.
The Tokyo stock exchange MtGox collapsed in 2014 after nearly half a billion dollars in bitcoins disappeared, while Coincheck was hacked in 2018, during which $530 million was stolen.
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