High Assurance Certificates as term itself says are issued to legally accountable individuals or companies. While applying for a High Assurance Certificate, a High Assurance Certification Authority will ensure that only fully authenticated and validated information such as domain name, company name, address, city, state and country are included within the certificate.
With an High Assurance certificate on your domain, your customers will feel that their information is secure. Along with this a extra trust will be established as they would be aware of the owner of the website from which they are transacting.
High Assurance Certificate verifies that transactions on your site are secured and importantly, it confirms your business identity so your customers are confident you are safe to do business with.