Cloud incident response system maker Threat Stack, formerly called Packet Stash, raised $2.6 million in venture round funding this month for its platform that provides monitoring over cloud-based systems. Its platform records logins, processes and file changes, and other system activity and alerts. It uses a lightweight agent to profile normal application behaviors and gives IT teams a view of the risk posture of the systems being used. The company said its recording system acts as a DVR, enabling incident responders to identify and trace specific threats to hosted applications. It also adds a mechanism to create custom firewall rules based on its alerts. Co-Founder and CEO Dustin Webber (pictured) is a former software engineer at Tenable Network Security. Richard Bejtlich, chief security officer at Mandiant (recently acquired by FIreEye), and Chris Wysopal, CTO and co-founder of Veracode, are on the company's advisory board.