Spam prevention refers to the methods and technologies used to reduce or eliminate unwanted and unsolicited messages, often sent in bulk. These messages can clutter inboxes and may contain harmful content, such as phishing attempts or malware. Common spam prevention techniques include filtering systems that identify and block spam emails based on specific criteria, such as keywords or sender reputation. Another effective strategy for spam prevention is user education. By informing users about the dangers of spam and encouraging them to avoid sharing personal information online, organizations can help reduce the likelihood of spam reaching their inboxes. Additionally, tools like CAPTCHA and email verification can further enhance security by ensuring that only legitimate users can access certain services.