Prompt Injection is a LangSec Problem: Unsolvable in the General Case

1 I don&#x27;t know if I&#x27;m saying something so obvious that no-one even bothers saying it (pointing at the sky and saying it&#x27;s definitely blue), or drawing a connection that no-one else has done before. Looking at both the literature, and the web, I can&#x27;t see anyone else making this connection. The lede here is this: prompt injection —the security problem that makes a whole class of…