CryptoHeaven for Java(tm) 2.7.3
Send and receive secure and anonymous email. Backup, store and share files online securely. Chat and exchange secure instant messages, create secure message boards. Share document folders through easy to use interface. HIPAA and GLBA compliant. Communicate and collaborate with your co-workers accross networks and firewalls with high level of security without a need for expensive VPN, PKI or complicated network setup and maintainance.

CryptoHeaven Secure Communication OS X 2.8.3
Secure and encrypted email with integrated business class secure Instant Messaging. Collaborate with others with secure group chat and secure file sharing. Use secure message boards and securely leave documents for others. HIPAA and GLBA compliant. Works across networks and firewalls without a need for expensive VPN, PKI or complicated network setup and maintenance.

Kinar KeepSafe FreeMail 1.4
Kinar KeepSafe is the easiest to use secure email solution available today. FreeMail provides the enterprise level security without any prior setup, use of passwords, or manual key/certificate exchange. Simply download, install and activate your existing email account as a secure e-mail account. Then you'll be ready to send encrypted e-mail and attachments to anyone with an email address. It's that simple. Does not install any spyware or adware.

Silver Key 3.52
Silver Key is a file encryption program that encrypts files or folders and produces encrypted parcels, which can be safely sent over the Internet. Silver Key parcels are self-extracting and don't require the recipient to have any cryptographic software installed. You can also specify additional action to be performed during decryption, such as creating a shortcut to the decrypted file, or opening the file using the associated application.

HighVIP Protected Email 2.7.2
Send and receive secure and anonymous email. Chat and exchange secure instant messages, create secure message boards. Share document folders through easy to use interface. Communication and collaborate with your co-workers accross networks and firewalls with very high level of security without a need for expensive VPN, PKI or complicated network administration, setup and maintainance.