CoinMarketCap data breach
From Breaches, in the HARD wiki · Updated
This article is about the October 2021 breach of CoinMarketCap. For every breach, see Breaches.
The CoinMarketCap data breach exposed 3,117,548 accounts from coinmarketcap.com in October 2021. The data taken includes email addresses.[1]
Have I Been Pwned verified it and added it to its search on 22 Oct 2021, within a month. It is the 262nd largest of the 618 breaches in HARD’s list.
What was exposed
CoinMarketCap’s breach included one kind of data. What each lets criminals do:
| Data | What it’s used for |
|---|---|
| Email addresses | Expect scam emails that name the company to look genuine. |
What to do
- Check whether you’re in it.Search your email address on Have I Been Pwned. It tells you which breaches it appears in, CoinMarketCap among them, without showing the data.
- Distrust messages that mention CoinMarketCap.Scammers use breach data to sound genuine. Don’t click links in emails or texts about the breach; go to the site yourself.
- Expect the data to resurface.Breach data is sold and combined with other leaks for years. Stay wary of messages that know a little too much about you.
Timeline
- : the breach, as best it can be dated.
- : Have I Been Pwned verifies the data and adds it to its search, within a month.
Similar breaches
Breaches that leaked the same kinds of data, closest in time:
- Twitter (200M), January 2021, 212 million accounts
- LinkedIn Scraped Data (2021), April 2021, 126 million accounts
- Luxottica, March 2021, 77 million accounts
- AT&T, August 2021, 49 million accounts
- Domino's India, March 2021, 23 million accounts
- ParkMobile, March 2021, 21 million accounts
See Breaches for all 618, and Updates for keeping your devices patched.
References
- ^ Troy Hunt. “CoinMarketCap”, Have I Been Pwned, added 22 Oct 2021. Breach data licensed CC BY 4.0.
External links
- Have I Been Pwned, to check your email address
- coinmarketcap.com, CoinMarketCap’s website

