Web services Credential

Hi!

I'm wondering if someone can tell if setting Credential to the call of a web services, is secure?

I Mean, I now can instanciat a Web Service Class, but this WS need a anthentification, so I use

VB Code:

Dim credentials = New System.Net.NetworkCredential(Me.txtUser.Text, Me.txtPassword.Text, Me.txtDomain.Text)
 
MyWebServices.Credentials = credentials

But I'm wondering if this method Is secure, in the help file I can read this

Quote:

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When the Credentials property is set to CredentialCache.DefaultCredentials then the client negotiates with the server to do Kerberos and/or NTLM authentication depending on how the server is configured.

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But What is Kerberos and NTLM authentication ???

Zak
:afrog: