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The security mandatory for one, unbearable for everyone else

La sicurezza obbligatoria per uno, insopportabile per tutti gli altri · Engineering · Beginner

The case

Your biggest client, a banking group, contractually mandates strong authentication on every session and a 15-minute timeout across the platform: requirements from their security audit, non-negotiable, due in 90 days. The problem: the platform is multi-tenant and the change would hit all other 300 clients, who did not ask for it and would experience it as a clear downgrade: your product wins precisely on its fluidity. Separating behavior per tenant requires an authentication system overhaul estimated at five months. Sales has already promised the bank it will be done. How do you get out of the bind?

Il tuo cliente più grande, un gruppo bancario, impone per contratto l'autenticazione forte a ogni sessione e il timeout a 15 minuti su tutta la piattaforma: requisiti del suo audit di sicurezza, non negoziabili, con scadenza a 90 giorni. Il problema: la piattaforma è multi-tenant e la modifica impatterebbe tutti gli altri 300 clienti, che non l'hanno chiesta e la vivrebbero come un peggioramento netto: il tuo prodotto vince proprio per la fluidità d'uso. Separare i comportamenti per tenant richiede una revisione del sistema di autenticazione stimata in cinque mesi. Il commerciale ha già promesso alla banca che si farà. Come esci dall'incastro?

Read the case, write how you would solve it — in free text, no prompt required — and Grace's AI judges whether your solution actually works: solved or not solved, with a 0-100 score and coaching feedback that points at what is still uncovered without revealing the answer. Your first 5 evaluations each day are free.

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Frequently asked questions

What is the "The security mandatory for one, unbearable for everyone else" problem-solving case on Grace?

It is a expert-level Engineering case based on a real workplace situation. You read the problem, write how you would solve it in free text, and Grace's AI judges whether your solution actually works — or what is still uncovered.

Is there one correct answer to "The security mandatory for one, unbearable for everyone else"?

No. Grace judges the substance of your reasoning, not similarity to a script. Different approaches pass, as long as they genuinely solve the problem within the constraints described in the case.

How is my solution evaluated?

Grace's AI checks four things: whether you address the core problem (not just the symptoms), whether your plan is feasible within the constraints of the case, whether you consider risks and consequences, and whether you avoid the typical mistakes. You get a solved/not-solved verdict, a 0-100 score and coaching feedback.

Who is this case for?

Anyone who wants to train structured problem solving: managers, professionals and candidates preparing for case interviews in Engineering. The expert difficulty makes it an accessible starting point.

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