My Terms of Services & Portfolio:
Due to my long experience in freelancing, working with many customers around the world, providing various services for famous websites, companies, governmental agencies, VIP personalities,.. I am aware that every job needs a high level of confidentiality.
By hiring me, the job done will not be mentioned in any of my portfolios or professional profiles. It will remains confidential whatever if an NDA was signed or not.
For some jobs, maybe I will ask your permission to add your job in my portfolio. However, it doesn't mean that it will be published. I could use it as reference when bidding, but only if I am sure that the project doesn't involves any sensitive situation, or show a connection between you and me to your competitors, or someone you don't want they know how you manage your Business.