Principles of a Cloud Migration – Security W5H – The WHERE

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“Wherever I go, there I am” -Security

I recently had a discussion with a large organization that had a few workloads in multiple clouds while assembling a cloud security focused team to build out their security policy moving forward.  It’s one of my favorite conversations to have since I’m not just talking about Trend Micro solutions and how they can help organizations be successful, but more so on how a business approaches the creation of their security policy to achieve a successful center of operational excellence.  While I will talk more about the COE (center of operational excellence) in a future blog series, I want to dive into the core of the discussion – where do we add security in the cloud?

We started discussing how to secure these new cloud native services like hosted services, serverless, container infrastructures, etc., and how to add these security strategies into their ever-evolving security policy.

Quick note: If your cloud security policy is not ever-evolving, it’s out of date. More on that later.

A colleague and friend of mine, Bryan Webster, presented a concept that traditional security models have been always been about three things: Best Practice Configuration for Access and Provisioning, Walls that Block Things, and Agents that Inspect Things.  We have relied heavily on these principles since the first computer was connected to another. I present to you this handy graphic he presented to illustrate the last two points.

But as we move to secure cloud native services, some of these are outside our walls, and some don’t allow the ability to install an agent.  So WHERE does security go now?

Actually, it’s not all that different – just how it’s deployed and implemented. Start by removing the thinking that security controls are tied to specific implementations. You don’t need an intrusion prevention wall that’s a hardware appliance much like you don’t need an agent installed to do anti-malware. There will also be a big focus on your configuration, permissions, and other best practices.  Use security benchmarks like the AWS Well-Architected, CIS, and SANS to help build an adaptable security policy that can meet the needs of the business moving forward.  You might also want to consider consolidating technologies into a cloud-centric service platform like Trend Micro Cloud One, which enables builders to protect their assets regardless of what’s being built.  Need IPS for your serverless functions or containers?  Try Cloud One Application Security!  Do you want to push security further left into your development pipeline? Take a look at Trend Micro Container Security for Pre-Runtime Container Scanning or Cloud One Conformity for helping developers scan your Infrastructure as Code.

Keep in mind – wherever you implement security, there it is. Make sure that it’s in a place to achieve the goals of your security policy using a combination of people, process, and products, all working together to make your business successful!

This is part of a multi-part blog series on things to keep in mind during a cloud migration project.  You can start at the beginning which was kicked off with a webinar here: https://resources.trendmicro.com/Cloud-One-Webinar-Series-Secure-Cloud-Migration.html.

Also, feel free to give me a follow on LinkedIn for additional security content to use throughout your cloud journey!