Potential leak of data: Default Credentials

Detected 1 occurrence(s) of ‘default\s*credentials’: .Subject = strSubject.ToString() .Body = strMensajeMail.ToString() .IsBodyHtml = True .Priority = Net.Mail.MailPriority.Normal End With Dim smtp As New System.Net.Mail.SmtpClient smtp.UseDefaultCredentials = False smtp.Host = ServCorreo smtp.Timeout = 200 If SmtpUSAUSR = "S" Then smtp.Credentials = New System.Net.NetworkCredential(UsrCorreo.ToString(), PwdCorreo.ToString()) End If smtp.Port = G Source: http://pastebin.com/raw.php?i=ewaLp7mD