LinkedIn user hides AI prompt injection in bio to force recruitment spam to be sent in Olde English prose — bots also manipulated to address user as ‘My Lord’

A LinkedIn user hid a prompt injection in their bio that steered scanning AI systems.

AI-assisted recruiter messages then addressed the user as “My Lord” and rewrote text in Old English.

The case shows how profile text can manipulate AI agents in recruiting workflows.

It highlights a growing trust and security risk for AI-generated outreach tools.