encryptionn on vnc and join.me

Are free versions of vnc and join.me encrypted?  I've seen contradictory documentation on this.  I need remote access to my own and other computers from  outside the office, but it has to be an encrypted connection.
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Neil RussellTechnical Development LeadCommented:
Teamviewer is the way to go :D

"TeamViewer includes full encryption, based on RSA private-/public key exchange and AES (256 Bit) session encoding. This technology is based on the same standards as https/SSL and is considered completely safe by today's standards."

Ref: http://www.teamviewer.com/en/products/security.aspx

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Brad GrouxSenior Manager (Wintel Engineering)Commented:
Join.me is encrypted, all traffic passes over encrypted connections.

While the current acceptable standard is 128-bit SSL (Security Socket Layer) encryption for sending and receiving sensitive information, join.me doubles your data protection with 256-bit SSL encryption, treating your data as securely as your bank account. - Join.me

VNC is ONLY encrypted if you use a Data Stream Encryption plugin or a version of VNC that has encryption built in. I believe RealVNC has encryption.
Teamviewer is not the way to go if it needs to be freeware as it may not be used commercially without a license.
UltraVNC for example offers encryption plugins and is free. It has some concept like teamviewer (a connection server that makes firewall adjustments superfluous). That thing was called singleClick http://www.uvnc.com/products/uvnc-sc.html but it would have to be initiated actively, it's not a service (while normal ultravnc is).
Hypercat (Deb)Commented:
We use both TeamViewer and RealVNC (there are different "flavors" of VNC, so there isn't one answer for all).  The free version of RealVNC doesn't include encryption, but the Personal version does (128-bit); it's about $30 per license, maybe a discount for multiple licenses.  We use the Enterprise version.  We use TeamViewer for external remote connections because it has better encryption, and RealVNC internally behind our clients' firewalls. Teamviewer is free ONLY for personal use.
I wonder why a solution is chosen that may not be used commercially unless we pay for it. I thought a free solution was searched for?
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