It’s an incredible bundle of awesomeness, right?
In other words, it’s just not practical.
As for the mobile apps, you’d have to decompile each and every version and examine the code line by line before relying on it.
Again, in other words, it’s just not practical.
The bottom line is even if these encrypted email offerings come from people and organizations with the best of intentions are honest and honorable beyond question… you still don’t know. You still must take a leap of faith and pretend your emails are 100% secure for all of time.
Depending on why you want your emails encrypted that could be a huge mistake.
The more secure way to encrypt your emails is to use public key cryptography. That requires you to generate your own private/public key pair and exchange public keys with anyone with whom you want to exchange encrypted emails. As long as your private key is not compromised emails you receive remain securely out of reach of any prying eyes. As long as the private key of those receiving encrypted emails from you aren’t compromised the emails you sent remain securely out of reach of prying eyes.
Do you see the weakness even with public/private key email cryptography?
No? Okay, walk with me. Do people get into trouble because of emails they receive or because of emails they send?
Since you can’t control whether your recipients’ private keys are compromised, you are still taking a big leap of faith any emails you send will remain encrypted and out of reach of prying eyes.
But all is not lost. The first question you have to answer is, “Why Do You Want Encrypted Email?” Once you have that question answered it’s easier to evaluate the current secure email offerings available.