Is '100% beef' a company owned by McDonald's (and therefore your beef products are not actually 100% beef)?

We've heard this myth, and can confirm that '100% beef" 'is not a company owned by McDonald's. We refer to '100% beef' when describing our beef burgers because these are made from whole cuts of beef, taken from the forequarter and flank, which are simply minced and shaped into burger patties. Once the patties are made, they are frozen, carefully packed and delivered to our restaurants. We do not add anything to the beef patties except for a sprinkling of salt and pepper after cooking.