# Trust & Safety Dictionary for Marketplaces

## Table of Contents

## A-B

- [Account Suspension](https://www.unit21.ai/trust-safety-dictionary/account-suspension)
- [Ban Evasion](https://www.unit21.ai/trust-safety-dictionary/ban-evasion)

## C-D

- [Case Management](https://www.unit21.ai/trust-safety-dictionary/fraud-case-management)
- [Duplicate Account](https://www.unit21.ai/trust-safety-dictionary/duplicate-account)
- [Coupon Fraud](https://www.unit21.ai/trust-safety-dictionary/coupon-fraud)

## E-F

- [Fraud Investigation](https://www.unit21.ai/trust-safety-dictionary/fraud-investigation)
- [Fraud Ring](https://www.unit21.ai/trust-safety-dictionary/fraud-ring)
- [Fraudster](https://www.unit21.ai/trust-safety-dictionary/fraudster)

## G-H

## I-J

- [Impersonation](https://www.unit21.ai/trust-safety-dictionary/impersonation)

## K-L

## M-N

- [Marketplace Risk](https://www.unit21.ai/trust-safety-dictionary/marketplace-risk)

## O-P

- [Off-Channel Communications](https://www.unit21.ai/trust-safety-dictionary/off-channel-communications)
- [Proactive Detection](https://www.unit21.ai/trust-safety-dictionary/proactive-detection)
- [Promotion Abuse](https://www.unit21.ai/trust-safety-dictionary/promotion-abuse)

## Q-R

- [Return Fraud](https://www.unit21.ai/trust-safety-dictionary/return-fraud)
- [Referral Fraud](https://www.unit21.ai/trust-safety-dictionary/referral-fraud)

## S-T

- [Trust & Safety](https://www.unit21.ai/trust-safety-dictionary/trust-and-safety)
- [Tactics, Techniques, and Procedures (TTPs)](https://www.unit21.ai/trust-safety-dictionary/tactics-techniques-and-procedures)

## U-V

## W-X

## Y-Z