Coinbase and Bithumb users have seen their data leaked after hackers targeted the South Korean crypto exchange and Coinbase’s analytics vendor.

The personal information of an unspecified number of Bithumb users was leaked after an “external party” reportedly breached its internal mobile groupware systems. 

Meanwhile, Coinbase’s third-party analytics vendor Amplitude suffered a security incident that led to the leaking of user contact data.

Coinbase has been on damage control since the leak, stressing to users that the exchange itself wasn’t breached. 

It said that only a “small subset” of users were impacted, and that there’s been “no evidence of unauthorized access to Coinbase systems, and customer funds were not impacted.”

Coinbase has not had a data breach.

Amplitude, an analytics vendor, experienced a security incident which impacted a small subset of Coinbase customer contact data, among other Amplitude customers.

We’ve found no evidence of unauthorized access to Coinbase systems, and…

South Korean TradFi firms Mirae Asset Global Investments and Daishin Securities also suffered a data breach yesterday. 

Almost 38,500 Daishin Securities customers saw their credit card and personal details leaked, while Mirae customer details reportedly didn’t appear to have been leaked during the breach.  

The situation in South Korea was bad enough that the country’s presidential office organised an emergency meeting to discuss the incidents. 

Customer data from the past three months, including transaction amounts and times, IP addresses, and country of origin, have been leaked by ransomware group WhiteArmor.

Wagyu reportedly refused to pay a $5 million ransom. WhiteArmor is also reportedly holding the Chinese electronics firm Hisense , and gambling firm Gamdom , to $5 million and $15 million BTC ransoms, respectively.

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