Small businesses have the advantage of being, well — small — small. Small businesses are not as dependent upon a large and complex POS or back office system. Small business owners should move to newer and more secure platforms and transfer the risk and costs associated with data theft to the service provider. The operating system for many of these devices is more secure than the desktop operating system running on many traditional POS systems. Small businesses should consider using a standalone POS PIN Pad that connects via plain old telephone system (POTS)”]
Source: https://www.darkreading.com/attacks-breaches/payment-card-data-theft-tips-for-small-business