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Mark Cuban's Private Key Compromise

ID: 2dedb896-a3e3-554e-b9a4-7351fed88f79

STIX ID: report--2dedb896-a3e3-554e-b9a4-7351fed88f79

Feed Name: CertiK Blog

Threat Score
60/100

Date Published: 2023-09-25

Date Updated: 2026-06-11

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On 15 September a publicly-doxed Mark Cuban Ethereum wallet was compromised—likely via a malicious MetaMask application—resulting in the theft and conversion of multiple ERC-20 tokens into ~525.92 ETH (approximately $859k–$870k). The attacker transferred funds through EOAs (including 0x5b9 and 0x981), split amounts for laundering, and moved proceeds to services such as ChangeNOW and Binance; the report highlights fake wallet apps as the probable attack vector and recommends verifying legitimate URLs and app provenance.

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