Research · curated 9 Aug 2026
5 Prompt Injection Examples & How to Defend Each
First reported qawerk.com
Coverage timeline
Single-source analysis — first reported, latest, and curated coincide.
Why it matters
Prompt injection in deployed AI products can expose hidden system prompts, backend details, and let attackers override intended behavior, making these tested examples and defenses directly useful for defenders hardening LLM-powered apps.
QAwerk describes five prompt injection findings its QA engineers discovered while testing live AI-powered products, including a meeting assistant that leaked its own developer instructions, mapping of hidden backends, sentence-completion tricks that bypass refusals, and filter-smuggling techniques, each paired with a defensive mitigation. The piece also frames prompt injection as OWASP's top LLM application risk.