"Unsuspecting customers" refers to people who are not aware or suspicious that something negative or dishonest is happening to them, often because they trust the person or business involved. Full definition
I can't believe that life insurance companies still lean on agents to push non guaranteed assumptions on unsuspecting customers. (hinermangroup.com)
The lawsuit alleges that the chain sold sick puppies from puppy mills to unsuspecting customers in violation of consumer protection laws. (thepuppymillproject.org)
They use the gluten free label to invite unsuspecting customers into buying their products. (forkoffgluten.com)