Security is not a binary. "Secure" is not something that can be evaluated without context, ie, a threat model. Security is something that comes with tradeoffs.

Security is not a binary. "Secure" is not something that can be evaluated without context, ie, a threat model. Security is something that comes with tradeoffs. If you require a 100% certainty that no adversary, no matter how well resourced, can obtain electronic communications from you when conducting active surveillance, your only defense is to stop using computers. Most of us don't live with that sort of a constraint, and thus can evaluate things that increase our relative security given a threat model of mostly passive surveillance by state actors and active malicious attacks from private parties that mostly just want our credit card numbers.