It is proven! I am belldavidr on Keybase: https://keybase.io/belldavidr/sigchain#e0c44f3e1c2f40282393ae73fc9bc1b507565081b8869c17ec02000d23464c510f
"Strontium" (APT28/Fancy Bear) targeting VOIP phones for initial access
https://msrc-blog.microsoft.com/2019/08/05/corporate-iot-a-path-to-intrusion/
It is proven! I am belldavidr on Keybase: https://keybase.io/belldavidr/sigchain#e0c44f3e1c2f40282393ae73fc9bc1b507565081b8869c17ec02000d23464c510f
Partner at Blackthorne Consulting; Former Red Team Director at GE and US Navy; Advisory Board member; Ex-.mil. Opinions are my own.