McDonald's has warned customers to keep an eye out for signs of identity theft after one of its marketing services partners (Arc Worldwide) was hacked. Arc Worldwide managed the fast food chain’s database of customer names, emails, addresses, phone numbers, and other basic information. Luckily, no credit card or social security numbers were in the compromised database, but hackers could use the email listing to send fake or bad mail to customers.
“That email service provider has advised that its computer systems recently were accessed by an unauthorized third party, and that information, including information that you provided to McDonald's, may have been accessed by that unauthorized third party,” said McDonald’s.
It is unknown how many accounts have been compromised, but it only affects those who have directly given their contact information to McDonald's.