Advertiser verification is a cybersecurity process used by digital platforms to confirm the identity and legitimacy of individuals or organizations purchasing ads. This procedure helps prevent fraudulent activities, such as scams, misinformation, or malicious software distribution, by ensuring that only trusted and verified advertisers can run campaigns. Verification typically involves collecting and validating business information, government-issued identification, and other relevant documents. By implementing advertiser verification, platforms can enhance user trust, comply with legal requirements, and maintain the integrity of their advertising ecosystem. This process is increasingly important as online advertising grows and threats become more sophisticated.