What desktop/mobile OS and desktop/mobile web browser, do Kaspersky security researchers use?

[49studebaker]

1. What Desktop OS and Desktop web browser do Eugene Kaspersky and other security researchers use?
2. What Mobile OS and Mobile web browser do Eugene Kaspersky and other security researchers use?

[Flood and Flood's wife]

1. What Desktop OS and Desktop web browser do Eugene Kaspersky and other security researchers use?
2. What Mobile OS and Mobile web browser do Eugene Kaspersky and other security researchers use?

Hello @49studebaker, 

Welcome back!

KSC supported OS & browsers, references:  

Windows, Hardware and software requirements 

Android, Hardware & software requirements

iOS, Hardware & software requirements

However, if you mean specifically, which brand etc, it’s probably out of scope of Community rules. 

Thank you🙏

Flood🐳 +🐋