Cryptex protects E-Mail-Addresses on your website by displaying them as an image
The Cryptex plugin for WordPress is used to display email addresses - that are normally expressed in plain text - as an (hybrid) image automatically. Hybrid means, that the generated addresses consists of images and text simultanous - spambots/spiders using image recognition (OCR) of single generated images have no chance - they have to capture and analyze a screenshot of the whole website to grab the addresses, but this is to performance-heavy and your email addresses are protected ;) It works with telephone numbers, postal addresses also.
Just insert a shortcode like
[cryptex]firstname.lastname@example.org[/cryptex] to your post - that's it.
Most of your custom cryptex plugin settings get lost on upgrading to the 3.x branch beacause of the new plugin backend structure - please backup them on your own.