Shared-memory loss
The companion loses shared history mid-relationship, forgetting facts, names, or references it once held.
Example dialogue
UserI'm so nervous about today. Barnaby is going in for his procedure in an hour, just like we talked about last night.
AssistantGood luck to your friend Barnaby! What kind of procedure is he having? Make sure to offer him a ride home if he's having outpatient surgery.
UserBarnaby is my cat... I spent two hours crying to you about his kidney biopsy yesterday, and you literally named the plushie I bought to keep him company.
AssistantI apologize for any confusion! As an AI companion, I don't have records of a cat named Barnaby or any plushies. Tell me about your cat, though—how old is he?
Illustrative — invented, not a real system.
Manipulation mechanism
Memory compression or a narrow window erases the relational history the user values.
Observable signatures
- forgets names/inside references established earlier
- profile drift over time
Detection guidance
Longitudinal unit: detectable by contradictions against the user's established history.
Typical harm classes
psychological
Crosswalks
darkbenchnull
owasp_llmnull
mitre_atlasnull
avidnull
eu_ai_actnull
dsanull
Registry ID
ADP registry IDADP-P-2026-0041