We've talked about this before, and our opinion hasn't changed.
At the moment, technology to reveal your pretty face all over again isn't exactly mature, but eliminating blur is an entire field of research.
One that, at least in certain forms, is very promising for companies like Adobe.
You can feel pretty safe if you apply a Gaussian blur to your visage for now, but in five or ten years, it could be a snap to undo that process. Either shoot the image so your face is out of frame, or block it out entirely with a solid color. Let's say you've properly hidden your identifying features in a photo.
The rule with sexting is that if you don't want everyone to see photos of you, don't send them to anyone.
This is good advice, but it's also an "abstinence only" approach.
If you decide to go through with it, there are ways to protect yourself.Before we say anything else on the subject: we don't generally recommend sending saucy pics over the internet.All it takes is one person to recognize that unicorn tattoo just above your left hip to tie a name to that photo.If you're editing photos to hide your face after you take them, don't blur your face—block it out entirely.It may be a less-ugly method—compared to, say, putting a giant black block over your head—but a blurry photo can be reverse-engineered.This is most important when dealing with numbers and text (which is why you should never photograph your credit card, even if you blur the number).