1. A method to be performed in an electronic processing environment, comprising: assigning a priority to a plurality of instances of known unwanted data, wherein the priority includes a distribution level characteristic associated with proliferation of each of the plurality of instances; generating signatures for the plurality of instances of known unwanted data based on the assigned priority; downloading a plurality of new signatures in response to identifying new signatures' associated priorities; and communicating information associated with at least one of the plurality of instances of known unwanted data over a network as part of an update for a system, wherein the information includes a detection technique for detecting an occurrence of the at least one instance of known unwanted data, the information being associated with a highest priority instance of the known unwanted data, and being communicated ahead of other instances of the plurality of instances having a lesser priority.