Your use of VMExam runs through an account, and the platform is deliberately spare about what that account holds: you register with a username, an email address, and a password, and that is essentially the whole of what the site keeps about you. VMExam will not tell you it is “100% secure” — no system honestly can — but it can tell you plainly what it stores, how a single account stays limited to one active session, and where your payment is handled.
Security is easier to trust when it is described rather than advertised, so here it is described: what the account holds, who can be signed in on it, and what happens to your card at checkout. On each of those points the arrangement is plain enough to state without reaching for a reassuring phrase.
What Registration Collects for Cloud Practice
The information behind your account centers on three things you provide when you register — a username, an email address, and a password — and those are what you sign in with to reach the cloud certification practice exams. The site is not building a wider dossier behind that sign-in: registration asks for no bank details and no identity documents. Payment is a separate matter, handled as described below, and it is not stored against the account.
One Active Cloud Certification Session at a Time
An account is limited to one active session at a time. Sign in somewhere new and the earlier session is dropped, so one set of credentials cannot be live on several screens at once. It is a small control with a real effect: a shared or forgotten login cannot quietly keep running in another place, and your cloud certification practice stays tied to you rather than passed around. What that means when you switch between your own devices is covered in Can I Log In from Multiple Devices?