Seeking to sell your old smartphone? Here’s how you can do so in a secure manner. First off, what needs to be understood here is that the phone must be WIPED clean of any data. Because, and for obvious reasons your data will stay safe and not fall into the wrong hands such as hackers or cybercriminals. You must be thinking, a factory reset would do the job. That is partly true since a new owner can easily recover deleted files, messages or texts via restore tools available online. Also, because passwords and other user details are saved by your