Hack history / 2021 / Hack or exploit
CoinMarketCap
Hack or exploit on Oct 23, 2021 · Information Leakage
ONE SOURCE · 1 SOURCE
Lost
undisclosed
dollars at the time
Returned
none listed
as the sources state it
Rank
not ranked
collapses, frauds and later news are not ranked
What happened
Email addresses belonging to 3.1 million CoinMarketCap users were leaked last week, according to Have I Been Pwned.Have I Been Pwned says that the website’s database was breached on Oct. 12, 2021. Exactly 3,117,548 email addresses, not including passwords, were stolen in the security breach.
Details
- Date
- Oct 23, 2021
- Kind
- Hack or exploit
- Method
- Information Leakage
- How in
- Other
- Target
- not stated
- Chains
- not stated
Reported by
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Cite this page
SwanBluechip, "CoinMarketCap hack, Oct 23, 2021: undisclosed lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht0d684c10d2/ (data as of 2026-11-01).