Sonic Drive-In in Wyoming, MI [Google Street View][/caption]On Wednesday, it was announced that Sonic Drive-In restaurants have been the victim of a data breach and Bloomberg is reporting that about 5 million credit and debit card accounts have went on sale on illegal websites.

Sonic was notified of the breach after it's credit card processor alerted them about "unusual activity" on their customers' cards. Sonic has since hired forensic experts and are working with law enforcement to uncover the breach so they can get more information to share with the public.

Sonic has 3,500 restaurants in 45 states and it's unknown right now what stores have been affected and from what dates. Sonic has two locations in West Michigan: Comstock Park & Wyoming.

KrebsonSecurity has more in-depth information regarding the breach. Until more is known, keep an eye on your statement for anything suspicious.