This property defines the behavior of the component if it meets unknown host. By
default this property is CACHE. This means that for every host component stores fingerprints in the registry. This provides tracking of the server keys
and avoids "Man-in-the-Middle" attacks. See also DifferentKeyPolicy.
This property can be one of the following:
||Immediately terminate the connection. Default.
||Do not save fingerprint to the registry.
||Save fingerprint to the registry.
||Throw event with information about host and fingerprint. See
OnAbsentFingerprint for details.