The standard match fields are sent through the Salesforce SSL Bulk API.
The data is used strictly for our match service, then discarded.
We do NOT keep any client data other than the Salesforce Record IDs. We keep a copy of the Record IDs for the associated Account, Contact and Lead, in a matched pairs table that relates to the Infogroup data.
This helps us determine which records are matched and which records need to be updated.
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