Q. Recently, I’ve become concerned about the privacy of sending email. What’s a cheap and easy way to protect my email messages? A. I’ve consistently preached that the use of unencrypted email is the ...

Reflect for a moment on the fact that the “S” in SMTP stands for “simple,” not “secure.” The e-mail protocol was originally developed for a small number of collegial scientists sending messages about ...

If you’re concerned about the privacy of your communications, “encryption is your friend.” That’s the surprisingly blunt assessment of Jeff Greene, executive assistant director for cybersecurity at ...