Thursday, November 27, 2014
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Step Carefully: Covering Digital Footprint Is Key to Web Privacy



Every time you open a browser to view a Web page, that information is stored on your computer—whether you're shopping online, checking movie listings, or catching up on the latest news.

Windows operating systems store this material in a temporary Internet file or "cache." Web pages may store bits of information about who you are in files called "cookies" on your computer. Your Web browser will store a list of websites you've visited and places you've gone in a history file in your computer—thus creating your digital footprint. Even if you're not online, programs will store histories of the files you've opened, played, or viewed.

Cookies are created to recognize users when they return to a website; they make it possible to offer customized content to a user. Even though cookies make Web use quicker and more convenient, they can be a threat to your privacy if they store sensitive information like your name and password on protected login pages, preferences, account information, and choices you have made on the site. So, even if you clear browser history, cookies—like a map—can show your surfing preferences, habits, passwords, and so forth.

Even if the cookies don't contain such information, they clearly show that you visited the sites from which they came.

Unfortunately, many consumers don't understand the risks of digital footprints.

The problem, as Internet privacy experts have documented, is a growing one. Mary McFadden, writing in a Pew Research report, "Digital Footprints: Online Identity Management and Search in the Age of Transparency," perfectly captured the potential for peril in online ID fraud. "Unlike footprints left in the sand at the beach, our online data trails often stick around long after the tide has gone out," she says.

Few Web users bother to cover those footprints. According to a 2011 123People.com study, only 23% of Internet users say they make a regular practice of reviewing their Web footprint, while 55% say they search using their name to check their online reputations. Even worse, the vast majority of Web users aren't even sure what personal data they're leaving behind on the Web.

How do you leave footprints?

  • Using search engines—The typical Web search reveals a lot to Web detectives. Your wants, needs, interests, careers, and financial life all can be revealed by your search habits. A search for a car loan on Google, for example, reveals a great deal about your financial health, your consumer sentiments, and even your future buying decisions.

    Your Web browser will store a list of websites you've visited, creating your digital footprint.

  • At work—Search engines and websites now have the technology to easily scoop up personal information based on your emails, browsing patterns, visits to chat rooms or blogs, even if related to your career.

  • Social networks—The big Web search engines cast a wide net over who's visiting Facebook or Twitter. The same goes if you're a regular visitor to Yahoo's ubiquitous user communities or the chat room of other websites. These sites can tell a lot about your interests and habits—whom you chat with, what your hobbies are, and whom you talk to online.

  • E-commerce— Any time you enter a credit card number or even a phone number during an online purchase, someone is storing it to build a record about your consumer habits—or worse.

  • Web ads—Online advertisements are like big fishing nets, collecting your personal data like name, phone number, and email address, every time you click on them.

  • Web broadcast sites—You might think a trip to YouTube to watch Jay Leno's monologue from last night is pretty innocent. On the surface it is. But Google, which owns YouTube, collects a load of digital footprints from Web broadcast visits.

Protect your privacy

Here's how to lessen your digital footprint:

  • Use Clear All History to delete cookies in Chrome, Internet Explorer, Mozilla, Mozilla Firefox, Netscape, and Opera Web browsers.

  • When you log in to a site and the computer asks whether you want it to remember you or if it's a public computer, choose public computer—even if you're using your home PC. This makes it more difficult for someone to retrieve personal information about you. It's more convenient to pick "remember me," but also more risky.

  • Leave your name out of search terms. Don't search for your name, address, corporate biography, or any of your personal information because the next person who uses the computer will be able to tell where you've been. If you have to conduct your own name search, use a different computer than the one you normally use—there's not as much of your personal history on your local library's desktop PC.

  • Ignore your ISP. A lot of people rely on their Internet service provider (ISP) to run their search engine tasks. Don't do it. Since your ISP is a part of the family, technologically speaking, and knows your search history, it will link your current searches to your previous ones, often into a single, easy-to-track search history. Example: AOL subscribers should not use http://search.aol.com to conduct their Web searches.

    Your search habits reveal your interests, careers, and finances.

  • Consider purchasing software programs that help eliminate your digital footprint such as McAfee, Symantec, or AVG.

Understanding Web privacy policies

Too often, Web users blow past "privacy policy" tabs on the sites they visit without regard to clarity or consequence. Worse, they often provide personal information without checking a website's privacy policy. That's the online equivalent to leaving your front door open when you leave for a two-week vacation.

The solution, fortunately, is an easy one. Read the privacy policy of each site you visit—especially the ones where you conduct online business. Most websites do provide privacy policies, usually at the bottom of the site's home page. Privacy policies disclose what personal data the site uses and holds—and shares. If you don't find a privacy policy, contact the site staff and ask them to post a policy or at least provide the needed information in an email back to you.

Some further digging should reveal "opt-out" clauses on most website privacy policies. In short, most companies give you choices about how your personal data will be used. For example, you should be able to direct a website, via its privacy policy, to not share your email address with other websites or off-line businesses. Also, most Web privacy policies should give you the opportunity to correct any inaccurate information you may have left on the site.

How can you tell that a site's privacy policy is on the ball? It should include some basic protections, such as a guarantee that it won't give out your email address, or basic, easy-to-understand instructions about how the site collects information based on your personal Web browsing habits. A good privacy policy also should provide some way to contact the website staff directly, and not the site's Web designer, as some privacy policies do.



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