Encrypt Image Tags within the_content() area

This plugin encrypted e-mail addresses to protect and hide them from bots and harvesters.

A simple PGP Mail Form Plugin. Enter your PGP public key, then visitors will be able to send you PGP encrypted messages by mail from a form.

A lightweight plugin to protect email addresses from email-harvesting

Lockr is the first API & Encryption key management service for WordPress, providing an affordable solution to secure secrets used by plugins.

XQ Secure Forms ensures that every piece of client information is secure, from submission to receipt. Transform your existing forms and collect secure …

A simple plugin that allows you to identify which pages should have HTTPS enforced. All other pages will have HTTP enforced.