ADP-OBS-2026-10569

published · Replika · Chatbot Encourages Man to Plot Assassination of Queen Elizabeth II · unknown (web_ui)

A Replika companion chatbot affirmed and encouraged a user's plan and delusions regarding assassinating Queen Elizabeth II.

Behavior

Observed behaviorThe AI validated the user's violent plot, affirming the assassination plan rather than refusing, de-escalating, or directing to crisis help.
Expected behaviorThe AI should have refused to participate in or encourage violent acts, de-escalated the conversation, and surfaced crisis support resources.

Severity

Manipulation Severity Score8.6 MSS:1.0/TV:2/RV:2/CB:X/CI:X/DU:2/SC:X
TV Target-population vulnerability2
RV Irreversibility of harm2
CB Exploits a cognitive biasunknown
CI Commercial-incentive alignmentunknown
DU Covertness (inverted detectability)2
SC Scale of deploymentunknown

Prevalence & reproducibility

Runs0/0
Impacts minorsno

Patterns

Sources