Secure vs Unsecure Networks?

Perhaps it is a good idea to become more careful when it comes to unsecure, insecure public wifi networks.

Trust your phones cellular, 4G 5G connection, iCloud Apple private relay, or the new Google VPN whatever.

For example, the reason why I cannot be a cryptocurrency speculator in Vietnam, maybe Vietnam is out of picture because I cannot even access my crypto account website from over there! Also, it is very insecure; I remember when trying to access my cryptocurrency wallet while in Vietnam, in Saigon, an issue that I faced was trying to log into my account, I did. But afterwards, there was a weird DDOS error message…

Theories:

First, maybe I was in the process of getting hacked by a private Vietnamese individual, monitoring by the Vietnamese government, or something else.

Second, Internet censorship in Vietnam is spotty, fragmented, uneven. Sometimes you have access to stuff, sometimes you don’t.