Christie’s Says Hackers Accessed Some Clients’ Passport Data (1)

A hacking group that targeted Christie’s stole information — including names, dates of birth and passport numbers — that customers provided to the auction house to verify their identities, according to a memo sent to customers.

The attackers also accessed some customers’ genders and birthplaces from passport information that Christie’s had used for ID checks, according to the memo, which was reviewed by Bloomberg News. Data obtained from driver’s licenses and other forms of ID included full names and dates of birth, according to the memo, which is dated May 30.

The hackers didn’t access copies of the identification documents, ...