In cybersecurity, a certificate is a digital document used to verify the identity of a user, device, or organization on the Internet. It is issued by a trusted third-party entity, called a certificate authority (CA), and contains information such as the certificate holder's name, their public key, the name of the CA, and an expiration date. Certificates are commonly used to establish secure communications over the Internet operating protocols such as HTTPS, SSL, and TLS. Using certificates, a website or service can prove their identity to users and ensure that the data transmitted between them is encrypted and secure. In summary, a certificate is a digital document used to verify the identity of an entity and ensure secure communication over the Internet.

ThreatNG Security is an external attack surface management, digital risk assessment, and security ratings solution that can help organizations manage and secure their SSL/TLS certificates by monitoring and managing them, identifying potential vulnerabilities and threats associated with them, and providing an assessment of an organization's SSL/TLS configuration. This solution can help organizations ensure that their certificates are valid, up-to-date, and properly configured and prioritize security efforts to improve overall security posture and protect against cyberattacks.