McDonald's is bringing with law enforcement assurances after malicious cyber-terrorists broke into some other company's databases and stole data about an undetermined count of the fast food chain's customers.

McDonald's has also alarmed potentially affected customers via e-mail and.through a message on its Web site"We have been altered by one of our long-time business cooperators, Arc Worldwide, that determined customer information gathered in connection with certain McDonald’s websites and furtherances was obtained by an wildcat third party," a McDonald's spokesperson said via e-mail on Saturday.

McDonald's hired Arc to arise and coordinate the dispersion of promotional e-mail capacities, plus Arc in turn relied on an unnamed e-mail company to manage the client information database. This e-mail company's organizations were hacked into.