SSL VPN technology essence consists in customers’ protection. It is indubitably secure. There are different methods of verification and you can choose any of them: login/password, RADIUS, certificates, Active Directory integration, and many others provided by your SSL solutions. In addition, there are various types of encryption. For example, Stonesoft SSL offers 3DES, RC2 algorithms which are very defensive. You can also select such protective means as security policies checking and traces removal.