I assume that came from "would be"; "wild" is trivial to explain via autocorrect, but "beef" is trickier. Maybe something like "wold bef".
---edit---
After further study, I'm pretty sure the original message was
"I dream of such a system that could be fitted on or in my body and would release poison if not acknowledged.
Should I become incapacited, the decision on how I end would be truly mine. "