Have you thought about who handles your sensitive documents? Does the company you use do a background check on the employees who will be handling your customers private information?
Alot of businesses assume that the individuals being let into their business have been vetted, but a decrease in workforce combined with increases in demand mean that employers are lowering their standards. This is allowing individuals who may not have you or your customers best interest in mind.
Ask the question when you meet with your sales representative or the owner of the business. Has everyone has been vetted to handle sensitive documents? You should always opt for on-site document destruction as well as it eliminates the chain of custody that can result in your data being compromised.