[otriv]

Not sure what you mean by 'secure'. If you send a person an email with ProtonMail, it defeats all the security that ProtonMail has (unless it's to another PM email). You should only rely on yourself for security. Start using PGP and demand that all your friends/relatives use PGP. Only sign in through Tor, use different emails for different services, etc.

You can't rely on a company to provide you security or privacy.

[throwawaymath]

> Start using PGP and demand that all your friends/relatives use PGP. Only sign in through Tor, use different emails for different services, etc.

Good luck with that. Security that no one uses isn't security at all. Placing those demands on everyone else in your life is going to result in fewer emails, not more secure emails.

[otriv]

> Placing those demands on everyone else in your life is going to result in fewer emails

Sometimes this is a good thing.