Threat model for EdgeX's secret store
https://docs.edgexfoundry.org/2.0/threat-models/secret-store/
Tingyu Zeng's talk at Open Source Summit North America 2019, August San Diego
https://static.sched.com/hosted_files/ossna19/d1/Agile.Approach.Threat.Modeling.EdgeX.pdf
Malini and Tingyu's talk at OSS EU 2019
https://static.sched.com/hosted_files/osseu19/a3/OSS_EU_2019_EdgeX_Security.pdf