A referral fee in cybersecurity and e-commerce refers to a commission charged by a marketplace or platform for facilitating a sale. This fee is typically a percentage of the transaction amount and is paid by the seller to the platform when a product or service is sold through the platform’s referral or listing. The rate of the referral fee can vary depending on the category of the product, the platform’s policies, and the overall value of the sale. Referral fees are common in online marketplaces, affiliate marketing, and partner programs, serving as an incentive for platforms to promote and support sellers. Understanding referral fees is important for businesses to accurately calculate their costs and set appropriate pricing strategies.