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I have recordings proving Coinbase knew about breach months before disclosure

(jonathanclark.com)
685 points jclarkcom | 1 comments | 16 Nov 25 20:18 UTC | HN request time: 0s | source
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AlexErrant ◴[16 Nov 25 20:54 UTC] No.45948315[source]▶
Here's a Reuters report from June 2, which includes a link to a May 14 SEC filing:

> Cryptocurrency exchange Coinbase knew as far back as January about a customer data leak at an outsourcing company connected to a larger breach estimated to cost up to $400 million, six people familiar with the matter told Reuters.

https://www.reuters.com/sustainability/boards-policy-regulat...

> On May 11, 2025, Coinbase, Inc., a subsidiary of Coinbase Global, Inc. (“Coinbase” or the “Company”), received an email communication from an unknown threat actor claiming to have obtained information about certain Coinbase customer accounts, as well as internal Coinbase documentation, including materials relating to customer-service and account-management systems.

https://www.sec.gov/Archives/edgar/data/1679788/000167978825...

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1. jclarkcom ◴[16 Nov 25 20:58 UTC] No.45948341[source]▶
Very interesting... January 7th is when I reported it to them so that lines up. I suspect I wasn't the very first person, the person I spoke with on the phone had the confidence I wouldn't expect on the first try.