If you run a PCI compliance scan or you're trying to configure your server, you may encounter a warning about allowing SSL v2.
SSL v2 is an older secure certificate protocol. Enabling this protocol allows people using older browsers to connect to your Website, however, those transactions are less secure because it is an older technology.
For applications requiring higher security, or to achieve PCI compliance, the SSL v2 protocol must be disabled on the server. To disable SSL v2 protocol, consult your Web server documentation.