This chapter covers the importance of software updates. It may seem like a boring topic, but keeping software up to date is essential to good security. We also talk about how a provider can implement updates without interrupting your service. You'll understand how those updates have prevented issues in the past and where to look for new SAP notes, which detail fixes. You should be able to ask intelligent questions about their update policy to make sure it's as aggressive as you need it to be.
In this chapter, we'll run through the threats that a networked environment like a cloud faces and the countermeasures a provider can take to stop them. The chapter will cover things like firewalls, VLANs, VPN, and more, as well as cover how an SAP system looks in a networked environment. You'll come away with a glimpse of how a cloud provider can organize their network defense to protect your data, as well as the range of additional options that you have to protect your connection to that data.