I keep getting emails about PCI compliance. I send invoices via quickbooks and some clients use credit cards to pay, but I do not have an ecommerce site or physical POS terminals. Do I need to do something more? My computers in my office have lock screens with passwords plus I have adequate building security. Intuit sends a PCI compliance email about every 2 weeks or so and I am wondering if there is something I am needing to do or do they just keep sending those emails?