One purchase.
Six months to prepare.

Every worked answer in all 17 topics, every lesson in every course, the full concept curriculum, the complete practice-test bank, and the downloadable security field guides. It lasts six months from the day you pay, and new questions, lessons and practice items added during those months unlock as they appear.

Worked answers explain the threat model, the control and its failure modes. Follow-up scenarios change a constraint, and the Weak, Hire and Strong Hire criteria help you assess your reasoning. Open the free answers in your target topic to judge their depth before purchasing.

Never. You pay once for six months. We set up no subscription and store no card, so there is nothing to switch off later.

Your account returns to the free plan and keeps its bookmarks and progress. Free material stays open. If another interview comes along, you can buy a fresh six months; nothing is charged automatically.

You see one price, set by your country with taxes included: ₹2,000 in India, US$25 everywhere else. In India you can pay by UPI or card; elsewhere by card or wallets such as Apple Pay and Google Pay, depending on what the payment page offers you. Dodo Payments is the merchant of record and sends the receipt. Your card and UPI details go to Dodo, not to us. Premium turns on for the Google account you are signed in with as soon as Dodo confirms payment.

Yes. 5 answers in each topic need no account at all. Signing in, which is free, takes that to 10. Those answers are complete, scoring and follow-ups included, so the agent security and prompt injection topics are a fair test of whether Premium is worth it.

Yes. Write to support at aisecurityinterviews.com with your interview date and we will extend access past it at no cost. The same address handles payments that did not unlock Premium, billing questions and corrections to an answer; a person reads and replies to each one.

Purchases are final except where your local consumer law gives you a right to a refund; see the Terms. Because everything unlocks the instant payment clears, the free answers are there so you can judge the quality first in the topics you need.