Top 3 most secure email providers in 2023: 1️⃣ ProtonMail - featured end-to-end encryption and a zero-access guarantee. The service was created in response to leaks from Edward Snowden and has its data centers based in Switzerland in an underground bunker strong enough to survive a nuclear attack. 2️⃣ Mailbox.org - Dedicated to serving business users. Mailbox.org comes with encrypted cloud storage, video conferencing features, a functional address book, a calendar, and a task planner 3️⃣ Neo- Ne