SSL Certificate required refers to the necessity of having a valid SSL (Secure Sockets Layer) certificate installed on a website or server. This certificate ensures that all data transmitted between the user’s browser and the website is encrypted and secure. It is essential for websites that handle sensitive information such as personal details, credit card numbers, or login credentials. Without an SSL certificate, the website may be vulnerable to data breaches and cyber attacks. Implementing an SSL certificate not only protects user data but also enhances trust and credibility for the website.