A working security education in WebAssembly (Wasm) as a portable, sandboxed binary execution format. You will learn what its default deny sandbox actually guarantees and what it does not, how that sandbox model extends, and does not automatically extend, from the browser into server side and edge runtimes, how the WebAssembly System Interface (WASI) grants specific limited capabilities through a capability security model, why the sandbox meaningfully contains many memory corruption bugs while leaving logic vulnerabilities and dependency risk fully present, and how to evaluate, with a structured framework, whether adopting Wasm for a specific workload is justified given its current tooling and audit maturity.
Nothing. Every course, exam, and certificate on the catalog is free — including retakes. All you need is a free Safeguard account.
None. The flagship course, Safeguard Certified Practitioner, is a beginner-level course — basic familiarity with how software is built helps, but every exam question is answerable from the lessons themselves.
You can retake it after a 24-hour cooldown, as many times as you need. Retakes are free, and each attempt draws a fresh random set of questions.
The Safeguard Certified Practitioner credential is valid for 24 months from issue. The expiry date is printed on the certificate and shown live on its public verification page. Renewing means passing the current exam again.
