### Comment:
Which online platforms are commonly used for online fraud?

### REPLY:
Online fraudsters commonly use platforms such as social media sites, online marketplaces, phishing websites, and fraudulent mobile apps to carry out their illegal activities. Social media sites provide a wide reach and allow fraudsters to target potential victims easily. Online marketplaces can be used for various types of scams, including selling counterfeit goods or conducting fraudulent transactions. Phishing websites are designed to trick users into providing personal and financial information, while fraudulent mobile apps often mimic legitimate applications to gain access to sensitive data.