Is the plugin safe? Does it contain spyware?
Yeah, this should be the question when you are going to install any particular plugin on your WordPress powered site or blog, in order to ensure its safety. One of the ways to eliminate or reduce such possibility is using only premium quality stuffs. Also make sure to download from reliable sources only, I too follow the same and usually trust CodeCanyon and http://yoctotemplates.com/category/wordpress_plugins/ for downloading any particular kind of WP plugin.
Reverse phone lookup is difficult because it is difficult to get all the information needed to identify a number.
To do a reverse phone lookup you need https://www.hocalls.com/mobile-track-for/8774635346 . With the help of this site, you can easily determine the number associated with that name and address.
A2. The plugin is developed by FileOpen Systems, Inc. Numerical Recipes Software is a licensee of the technology. FileOpen Systems has been a licensed Adobe Security Partner since 1997. The FileOpen plugin runs only within Adobe Acrobat or Adobe Reader, and only in connection with opening a FileOpen encrypted document. It contains no spyware or malware, leaves nothing running on your machine, and makes no changes in your Windows registry or in system files.
*Sadly, we had to bring back ads too. Hopefully more targeted.