MailCloak by Global Web Security Systems is an encryption plug-in for Internet Explorer, Firefox, and mail clients. Its strength lies in its use of strong GnuPG encryption for Gmail, Hotmail, and Yahoo! Mail, making it the first encryption killer app.

MailCloak was developed with ease of use in mind, which is why it is extremely easy to operate. To start protecting your communication, all you need is to create a public key, turn on MailCloak and send your friends encrypted emails. MailCloak will attach your public key to all outgoing emails and will even import your friends' public keys when they send them to you. This makes it very easy to start communicating safely with GPG encrypted email.
You can also test MailCloak's capability by sending an email to [email protected]. If you have MailCloak installed, Cryptobot will extract your public key and reply with an encrypted message and its own GPG public key. This encrypted communication also extends to other GnuPG, Gpg4win, FireGPG, and PGP users.
Global Web Security Systems also offers a desktop application that allows Microsoft Windows POP3 email users to send encrypted email. If your friends use this email service, you can direct them to getmailcloak.com to get a copy of MailCloak desktop.
It is important to note that MailCloak stores all keys and passwords on your personal computer, ensuring complete security and privacy in all of your communications. Overall, MailCloak is a simple, innovative and valuable software that can protect your electronic communications.
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