A query is received from a particular endpoint device identifying a particular wireless access point encountered by the particular endpoint device. Pre-existing risk assessment data is identified for the identified particular wireless access point and query result data is sent to the particular endpoint device characterizing pre-assessed risk associated with the particular wireless access point. In some instances, the query result data is generated based on the pre-existing risk assessment data. In some instances, pre-existing risk assessment data can be the result of an earlier risk assessment carried-out at least in part by an endpoint device interfacing with and testing the particular wireless access point.