"1.1" . "Stable" . . "Prelude is an agentless, universal, and hybrid security information and event management (SIEM) system, released primarily under a Proprietary software license and a version for evaluation released under the terms of the GPLv2.Prelude collects, normalizes, sorts, aggregates, correlates and reports all security-related events independently of the product brand or license."@en . . . "Prelude SIEM"@en . . .