Certum is one of the biggest public certification authorities from Europe, by using the S/MIME certificate, it can encrypt email communication and provide digital signatures to protect your email privacy, preventing potential leakage and modification of email contents, it also verifies the authenticity of your identity to the recipient. Nowadays, remote work is becoming the norm for office employees, so it is important to ensure the security of email communication. Certum S/MIME certificate also supports a variety of emails, browsers, applications, and Microsoft operating systems.