1. An apparatus to identify correlated privacy values, comprising: a principal monitor to identify a first privacy value associated with a first principal; a tuple manager to build a probability tuple matrix including a first tuple and a plurality of second tuples, the first tuple including the first principal and the associated first privacy value; an anonymity index manager to determine, based on the first tuple, a probability that the first principal and the first privacy value will remain anonymous in response to disclosing the first privacy value; and a privacy rank manager to, when the probability satisfies a privacy threshold, block the disclosure of the first privacy value, the privacy threshold indicative that the first principal and the first privacy value will not remain anonymous in response to disclosing the first privacy value, at least one of the principal monitor, the tuple manager, the anonymity index manager, or the privacy rank manager including a logic device.