Given what we know about the NSA and US govt. surveillance (not to mention what we likely don’t know) why wouldn’t you carry a burner phone everywhere? If you and companies are worried about trade secrets and proprietary customer info it should be protected everywhere, not just from the Chinese. https://www.zerohedge.com/markets/deloitte-and-kpmg-ask-employees-carry-burner-phones-when-traveling-hong-kong