In one embodiment, a method and apparatus for a mechanism for data migration across networks is disclosed. The method includes: randomly selecting a template from a local cache at an agent, the template indicating one or more characteristics of event data entities the agent is searching for; querying, via random connections from the agent, one or more other connected agents for the event data entities matching the template; if a matching event data entity for the template is found, returning the matching event data entity to the local cache of the agent; and if a matching event data entity for the template is not found, diffusing the template to the one or more other connected agents via a data diffusion process. Other embodiments are also disclosed.