McDonald’s Corp said on Monday hackers gained access to a database containing information such as the email addresses and birth dates of people who voluntarily signed up for its websites and promotions.
The world’s biggest hamburger chain said the security breach did not include any Social Security numbers, credit card accounts or sensitive financial information.
The hacked data was on computer systems operated by an email database management firm hired by McDonald’s long-time business partner Arc Worldwide, the marketing services arm of advertising firm Leo Burnett, McDonald’s spokeswoman Danya Proud said in a statement.
In its announcement, McDonald’s said:
By way of background, McDonald’s asked Arc Worldwide, a long-time business partner, to develop and coordinate the distribution of promotional emails. Arc hired an email service provider, a standard business practice, to supervise and manage the email database. That email service provider has advised that its computer systems recently were accessed by an unauthorized third party, and that information, including information that customers provided to McDonald’s, was accessed by that unauthorized third party. […]
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