For each normal user the number of required passwords are rising rapidly and to remember them all will be increasingly difficult. As a strategy, the user uses identical credentials for all authentication, easy to remember, but insecure. Also to write the passwords on a paper is not a viable solution. Thus undermined the required security and in fact it allows crackers a simple opportunity, such with phishing attacks. If your secret data arrive into the wrong hands it can arise even in a financial loss. The software abylon LOGON SSO Pro offers a helpful support, without reducing safety. The user must authenticate only once during the Windows login and have access to all of its safely stored credentials. In networks with multiple user the credentials can be centrally managed by an administrator. Through the use of hardware tokens (eg smart cards or USB - sticks) is the individual employee is no longer in the possession of real credentials. The using on a special software procedure block the real keyboard and mouse input during the single sign-on process. So the credentials can not be diverted to clear fields and spy illegally. The administrator can change the real independent access without the token's re-created again. If needed individual Token's can also be disabled or blocked temporarily. A complete removal of the token from database makes any further use impossible.