What's the difference between an Extended Validation (EV) Certificate and Organization Validation (OV) or Domain Validated (DV) Certificates?
Domain Validation (DV) Certificates are easiest of all the certificates to get. There's no manual identity check, only an automated verification that the applicant owns the domain behind the website. If you have a personal website or blog, a DV SSL Certificate is fine for you.
Organization Validation (OV) Certificates take security up a level and require human verification of the organization’s identity. The same is true for Extended Validation (EV) Certificates, which verify not just domain ownership but business identity, legal status and address. The vetting process for the EV cert is more in-depth than any of the other Certificates, so EV SSL Certificates give customers more confidence. The increased scrutiny rules out the chance that a hacker or phisher could get an EV Certificate.