How to keep companies from tracking you online — for good

These days, it’s nearly impossible for the average consumer to expect anonymity online or off — at least not without a bit of legwork first. 

Data brokers —companies that specialize in gathering information about consumers and selling it to third parties — have turned the collection and sale of publicly available personal information into a multibillion-dollar industry.

At any given moment, hundreds of these companies are analyzing everything from our ZIP code, income and ethnicity to our taste in music, our driving record and how often we search for funny cat videos. They then take that information, sort us into groups and make a fortune selling it to marketers, employers, charities, government agencies, and other businesses. As to what they do with this information, the details can be hazy.  Some data are sold to marketers, but other information can be used to screen prospective employees, run background checks, detect identity theft, or come up with a dubious alternative to traditional credit scores.  

There’s little we know about data tracking and the companies that do it. Neither regulators nor lawmakers have managed to wrap their heads around data brokers quite yet.
 
What we do know, based on reports by the Government Accountability Office, Federal Trade Commission, and the World Privacy Forum, a consumer advocacy group, is that it’s nearly impossible for consumers to control the information that’s been collected about them. The FTC will publish the results of its investigation of nine major data brokers later this year.

 “A lot of this [tracking] is happening in a benign way, but to me the security problem is what makes the privacy problem so much worse,” Avi Ruben, a professor of computer science at John Hopkins University’s Information Security Institute, told Yahoo Finance. “If every company collecting this data was capable of securing it 100%, then we could take some comfort. But they can’t.”
 
We talked with a few experts to find out steps consumers can take on their own to keep their information and browsing habits as private as possible.
 
Start with your search engine
 
You may think of your search queries as a private conversation between you and the boundless realm of the Internet, but the opposite is often true. Search engines can and often do keep a log of everything users search for. When you click on links that turn up in search results, the corresponding website will often get a blurb of data telling them which search term led you to their site, along with a log of your computer location and IP address.
 
The consequences of this sort of data tracking can vary from the benign (more ads based on your search history) to the incriminating.
 
To prevent search engine tracking, make a habit of deleting your search history and cookies (the little bits of code that attach themselves to your computer when you browse online).
 
One problem with this strategy is that deleting your cookies can undo all of the sweet shortcuts you’ve created for yourself  (such as remembered passwords and specific website preferences).
 
Enable the “Do Not Track” feature

In response to revelations about NSA spying and the federal government’s ongoing collection of consumer data, a group of Internet heavyweights, including Google and Apple, recently rolled out a feature called the “Do Not Track.” DNT lets consumers opt out of third-party web tracking. To date, only 19% of users say they use this feature, according to a Forrester Research report, but it’s one of the simplest ways to keep third-party trackers at bay.

To initiate “Do Not Track” on your browser, go into your browser preferences and look for the tab labeled “Privacy.” Check the box to enable the DNT feature. You can get the same protection on your mobile phone by enabling DNT via your browser privacy settings. Most popular browsers offer a DNT option, including Google’s Chrome, Mozilla Firefox, Explorer and Safari.