Is LangChain safe with your data?
LangChain
Partial disclosure · high confidence
LangChain earns a C (54/100) because it discloses its data practices only in part.
#62
of 216 apps ranked
54
score · Data platform avg 47
+7
vs category average
LangChain commits in writing that it will not train on customer data and that customers keep ownership of their inputs and outputs, but its privacy policy leaves retention open-ended and describes security only in general terms.
What LangChain's privacy policy and terms of service say about your data
No training on customer data
The terms state plainly that LangChain will not use Customer Data to train on, develop, or otherwise improve its products, including any large language models, and customer inputs and outputs remain owned by the customer under a licence limited to running the platform.
Deletion on a clock
After termination, LangChain deletes all Customer Data in its custody and control within thirty days of a written request, and customers can export their data during the same thirty-day window.
Retention left open-ended
The policy names no retention period, keeping personal information only "for as long as it is reasonably needed," with no shorter clock for AI traces or run logs and no data-minimization commitment.
Security and transfers described in generalities
Safeguards are "reasonable organizational, technical and administrative measures" with no named controls, breach notice carries no timeframe, cross-border transfers name no specific safeguard, and the policy claims no security certification.
What the policy is silent or vague on
- Not stated: whether training use differs by plan
- Not stated: shorter retention for AI conversation logs
- Not stated: a data-minimisation commitment
- Not stated: whether it sells or shares data for advertising
LangChain privacy rating
Details
- Category
- Data platform
- Modalities
- text
- Processes biometrics
- No
- Policy last updated
- 2024-04-28
- Region scored
- Global / US-default
- Last assessed
- 2026-10-13
Documents examined
Each grade reflects our analysis of what an app states in its public privacy policy and terms as of the assessment date. It measures the transparency of those documents, not the company's actual data practices, security, or compliance. Grades are our opinion, offered for general information. Full disclaimer.