Tenable has launched a standalone version of its Passive Vulnerability Scanner (PVS).

Previously only available as part of Tenable's SecurityCenter and SecurityCenter solutions, PVS allows real-time monitoring of both IPv4 and IPv6 traffic on networks.
The product was designed for monitor systems sensitive to disruption by traditional scanning, such as mobile, virtual and cloud apps that may not be present during scheduled scans.
It also complemented Tenable's Nessus active scanner by monitoring network traffic detecting apps, services, protocols, hosts that are not present or evade active scanning, according to the company.