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Breach occurred 2021-10-12Verifiedcoinmarketcap.com
What happened
During October 2021, 3.1 million email addresses with accounts on the cryptocurrency market capitalisation website CoinMarketCap were discovered being traded on hacking forums. Whilst the email addresses were found to correlate with CoinMarketCap accounts, it's unclear precisely how they were obtained. CoinMarketCap has provided the following statement on the data: "CoinMarketCap has become aware that batches of data have shown up online purporting to be a list of user accounts. While the data lists we have seen are only email addresses (no passwords), we have found a correlation with our subscriber base. We have not found any evidence of a data leak from our own servers — we are actively investigating this issue and will update our subscribers as soon as we have any new information."
Data exposed
Frequently asked questions
The CoinMarketCap data breach occurred on October 12, 2021. It was added to Have I Been Pwned's breach catalog on October 22, 2021.
3,117,548 accounts were affected by the CoinMarketCap data breach, according to Have I Been Pwned's records.
The CoinMarketCap breach exposed the following data types: Email addresses.
Yes. Have I Been Pwned has verified the CoinMarketCap breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the CoinMarketCap breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
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