By Daniel Miessler
With WannaCry and now Petya we’re beginning to see how and why the new strain of ransomware worms are evolving and growing far more effective than previous versions.

I think there are 3 main factors: Propagation, Payload, and Payment.*

Propagation: You ideally want to be able to spread using as many different types of techniques as you can.
Payload: Once you’ve infected the