Project: Cybersecurity Insurance: Modeling and Pricing
                          Supported by SOA

The loss model considers the following components:

Green nodes -Good status
Red nodes-Down status (Infection or repair)
cyberloss
Time:  the time elapses
N_loss: new loss due to infection
C_loss: cumulative loss to Time

The research report is posted on the SOA website: https://www.soa.org/research-reports/2017/cybersecurity-insurance/.

Here is a local copy.