A code level tour of the cryptography and secrets weaknesses that recur most often among the highest severity disclosed vulnerabilities: broken algorithm selection, weak hashing, insufficiently slow password hashing, hard-coded credentials and keys, insufficiently random values, inadequate encryption strength, improper certificate validation, and cleartext storage and transmission. Each weakness gets an original vulnerable and fixed example, the detection methods that actually catch it, and the safer construct that removes the class, closing with the systemic controls, vaults, crypto agility, allowlists and rotation, that remove the whole family.
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.
