Re: How to add name/address security on cell pohnes
Many of the current smartphones have a setting you can enable/disable as to whether to send CallerID information when you make calls. This is about the closest I can think of to what you seem to be wanting. Just disable the sending of CallerID information when you make phone calls.
Do keep in mind that many people will not answer calls when the CallerID information is blocked. Most people blocking CallerID tend to be marketing people who are performing questionable actions, and they don't want you to easily know who they are to report them to the authorities.
You could always get a pay-as-you-go device and use it for a short time, then move on. This is often referred to as a "burner" where you use the cell phone until you think it's compromised and then you toss it and get a new one.
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.