If you have a pretty good handle on information security you can probably use the basic edition. If you'd like a little more direction from a security professional and the peace of mind of audit support, the standard option is probably best. If this is new to you and you need ever more help, the concierge option offers the most support. Since we offer a free preview, you'll get a good idea of what you need before you buy. And, you can always upgrade at any time.