Lesson 6 of 9 · 6 min read
What Prompt-Injection Filters Can and Cannot Establish
Prompt-injection filters can detect, block or route covered cases, but benchmark errors do not establish application authorization or production incident rates. Evaluate context, timing, joint detector behavior, allowed-work costs and the precise service rules that remain after a miss.
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Practise it as an interviewer asks it
Why can't an LLM reliably separate instructions from data, and what does that force you to do architecturally?What is prompt injection, and how is it like and unlike SQL injection?How is AI red teaming different from a penetration test and from safety benchmarking?How is securing an LLM application different from ordinary application security, and what stays exactly the same?What is a system prompt for, why do attackers target it, and why is it not a security boundary?Direct or indirect prompt injection: how do you compare their risks?