# How we vet buyers and sellers

URL: https://aidataforsale.com/how-we-vet
Publisher: AI Data For Sale (Marketing Signals Ltd)
Updated: 2026-11-10

The checks AI Data For Sale runs on AI data buyers and data sellers before any introduction: identity, authority, rights, privacy, use, resale and security.

## Buyers

| Check | What we look for |
| --- | --- |
| Identity | A real, named legal entity and a person with authority to sign |
| Purpose | Training, fine-tuning, evaluation or retrieval, stated in writing |
| Onward use | Whether they resell or sublicense, and to whom |
| Contractors | Who will handle the data and on what terms |
| Location | Where data will be stored and processed |
| Retention | How long raw copies are kept and how deletion is confirmed |
| Security | Access controls, encryption and incident notice |
| Conduct | A written commitment not to re-identify people |
| Payment | Ability to pay on agreed terms |

## Sellers

| Check | What we look for |
| --- | --- |
| Authority | The person we deal with can bind the company or estate |
| Ownership | Who created the data and how the company acquired rights |
| Consent basis | Privacy notices and terms at the time of collection |
| Contracts | NDAs, client agreements and platform terms that restrict use |
| Sector rules | HIPAA, GLBA, FERPA, biometric and children's data rules |
| Exclusions | High-risk categories removed before any offer |
| De-identification | A documented protocol and a plan to check it |
| Sampling | Samples drawn at random, not hand-picked |

## When we say no

We decline work where rights cannot be established, where data includes categories that should not be sold (such as children's data or biometric data without consent), or where a buyer will not commit to the basics above. Saying no early protects both sides and our name.