All contact IP addresses are hashed when they are saved to the xDB database. There are two settings in the
Sitecore.Analytics.config file that specify how the IP addresses are stored:
The default setting is
This provider is always used. It hashes IP addresses using the MD5 hash algorithm. The setting contains the
Sitecore provides a tool called Hash Stored IPs. You use this tool when upgrading from a version earlier than Sitecore 8.1, where IP addresses were not hashed. You must only use this tool on the xDB MongoDB database.
IP addresses are always hashed in the Geoips collection.