1. A method of identifying fraudulent data in a contact database, the method comprising: receiving a plurality of contact records, each of the plurality of contact records including a set of contact field values corresponding to a set of contact fields; determining, by a computing device, whether a similar content pattern exists in the plurality of contact records using at least one of the set of contact field values; determining, by the computing device, whether an unusual content pattern exists in the plurality of contact records using at least one of the set of contact field values; and flagging, by the computing device, the plurality of contact records when at least one of the similar content pattern or the unusual content pattern is determined to exist in the plurality of contact records.