The hacker stole the personal data of users of the CryptoTrader.Tax service designed for tax accounting when making transactions with digital currencies.
At least 1,082 clients became victims of the attacker. The hacker gained access to the resource base through the account of a support employee. This allowed him to upload user data, including names, email addresses, partial information on income from cryptocurrency transactions, and information about profiles in payment systems.
CryptoTrader Tax confirmed the leak. Co-founder of the company David Kemmerer said that the attacker downloaded a file with a database of 13,000 lines, of which 1,082 are unique email addresses.