According to The Wall Street Journal, Google has been caught tracking iPhone, iPod touch, and iPad users via the Safari web browser on iOS by using hidden software embedded on certain websites. The software is designed to go around default privacy settings setup by the user, which allowed Google to track their behaviors on the Internet.

The issue lies with how Safari handles cookies, the information that is stored on devices that allow you to login to a website, leave the website, and come back still logged in. Cookies are also used by a number of advertisers, including Google, to display relevant ads to you.

Google is accused of placing specific cookies onto users' devices, which would allow the Internet giant to then track the behavior of the user. The company claims that the software being placed on certain websites was actually a mistake, and was done merely to use the Google "+1" button on domains other than Google.com.

Google has stated it has begun deleting the cookies that are causing the controversy from user' devices, but hasn't provided a current state of this. In addition, it's unclear whether any government agencies will begin to investigate this incident, but it's likely that it will happen eventually.