Review on SecureFlag by Byron Forman

The app has been very helpful in my day-to-day job as a penetration tester. It's a great way to train yourself on a subject that can be difficult to explain in person. There are also many different types of exercises, from simple examples to complex problems. I don't have any negative feedback. If you're not familiar with writing VMs and containers, it can be intimidating at first. As with other training apps, the exercises themselves may seem straightforward but when put into action they can take hours to properly solve. The app is free to use, so there's really no reason not to try! We've used the app to train our team about container security and secure configuration management practices.