Why Does Everyone Want Your Data?

Data: companies want it, users have it, and it’s valuable because it can be used to sell people things. Beyond that, it’s not often made clear exactly what user data consists of, where it goes, and how it’s profitable. Why does this multi-billion dollar industry full of data brokers, advertisers, and technology companies exist?


“User data” is pretty much everything that a particular company knows about you. It’s often broken down into three main categories: explicit/declared data, implicit/inferred data, and third-party data.

Explicit data is anything that a user gives a company voluntarily. Generally, this is done when a customer signs up for a service or creates some kind of profile, and it can include everything from your name (though it’s often anonymized), age, and location to your hobbies and personality type. These details are just basic user data, and since they’re so widespread and easy to obtain, the most common data points aren’t worth very much on their own.

Implicit data is data that is collected about you without needing your direct input. Your browsing habits, how long you stay on a webpage, the ads you click on, your mouse movements, your playlists – almost anything you do online could theoretically be collected and sent to a database for analysis.

Implicit data is often also mixed in with inferred data, which is produced by analyzing a profile and making guesses about the person it represents. By looking at the information it’s given, an algorithm can decide whether to label you as a candidate for a bicycle ad or a cheeseburger ad, for instance.

Once it’s collected and analyzed, though, your data doesn’t just sit around – it will likely travel on epic journeys between companies that specialize in finding, updating, and selling off user data to companies that need it. These third-party data brokers and data exchange centers are a big reason why the data industry is growing by billions of dollars per year.


User data collection may have acquired a bad name, but modern companies really wouldn’t survive without it. At a minimum, they have to analyze user behavior to follow market trends and figure out consumer preferences. If they can also guarantee advertisers an audience that will click on their ads, then they can make money, which allows them to stay in business without charging for their services.

The advertising model that basically runs the modern Internet is probably the biggest driver behind the market for user data. Figuring out ways to identify who is on your site, look up their advertising profile, and serve them relevant ads is a lot better than just randomly firing content-based banners at whoever browses by. Well-targeted ads (but not too targeted, or users find them creepy) make real money, and they’re worth all the hassle of getting user data. Unsurprisingly, there’s a lot of money involved in getting the right ads to the right people, which means that there’s also no shortage of data breaches and privacy issues surrounding the industry.


But data isn’t all about invading people’s privacy to get them to buy new smartphones – it’s also massively helpful for companies doing market research, trying to comply with regulations, or working to improve their products. Many of them do keep user information confidential and take the proper precautions to ensure that they protect user privacy, and even in advertising the information making the rounds often isn’t personally identifiable.


There wouldn’t be so much of a fuss about user data if it wasn’t worth something. When it comes down to it, much of the Internet is about getting users to give their money to companies. As long as they keep doing that, advertisers will pay websites for their ad space, and if they do it more, advertisers will pay more.

This means that different users have different values. A high-income frequent traveler from the U.S is a much juicier target than a Canadian university student, simply because a shot at selling a Rolex is better than a shot at selling ramen.

How much exactly is your data worth then? It turns out to be a very subjective calculation, and it gets even harder when you take black market/under-the-table data deals into consideration. Depending on your demographics and how much data a source has on you, your data could be being bought and sold for anywhere between a few cents and hundreds of dollars every year. This calculator from the Financial Times gives you a pretty good idea of what affects your data’s value.

Data is the new oil in more ways than one: It runs the engines of modern e-commerce, contributes to the development of new products and technologies, is controlled by a large network of possibly untrustworthy companies, and frequently gets spilled into the wild. Overall, it’s probably been a net positive for human progress, as it provides lots of helpful human insights and allows a vast array of technologies to be distributed for free.

Nonetheless, there are a myriad of issues surrounding the vast trove of user data that exists. As a more serious dialogue develops, users may eventually be granted greater transparency and control. As long as it remains valuable, though, it will reliably be misused.

Image credit: Photo.iep


  1. OK, so the advertising industry gathers generalised demographic information in order to deliver targeted advertising, so what?

    You don’t have to respond to those adverts, they’re actually better than the junk mail that comes through your letterbox or the leaflets that fall from the pages of your favourite magazine, in fact there is usually a plethora of adverts on the magazine pages anyway.

    At least targeted adverts MIGHT contain information on something you might be interested in, unlike the broad spectrum junk mail that lands on your doormat or falls out of your magazine, most, if not all, of which is unlikely to be of any interest at all and if it is, then that is pure coincidence.

    At least (apart from the energy considerations) electronic advertising, yes, even spam, is more ecologically friendly than the glossy paper versions, which invariably go into my recycling.

    If the companies concerned wish to waste money targeting me with offers in which I have no interest and which will not induce me to buy their products, well that’s their problem and their loss.

    It is so simple, if you didn’t explicitly ask for it but you still receive it just delete it and move on, don’t stress over it, as long as they’re not asking for financial or medical information, or, indeed any information that you may consider sensitive then it is, at absolute worst, a minor inconvenience, no more that advertising in any other medium, including TV and the press.

    That is not to say that you should not be alert to criminal scams, of course you should, but the vast majority of harvested demographic information is for legitimate advertising purposes, annoying? Yes, something to get worked up about? No.

    Of course it’s up to the individual as to how much and what information they disclose and under what circumstance, by all means be cautious but not paranoid.

    • “Of course it’s up to the individual as to how much and what information they disclose and under what circumstance, by all means be cautious but not paranoid.”
      Were it only so simple. What about companies such as Equifax, TransUnion and Experian? Individuals have no direct interaction with them. Individuals have absolutely no control over what information those companies collect. These companies collect sensitive financial information from banks and other financial institutions without our knowledge or permission. There are many other companies that do the same.

      “as long as they’re not asking for financial or medical information”
      Aye, there’s the rub! They don’t have to ask. A lot of that information is already available on the Internet with a little effort. In addition, Amazon is in the process of facilitating video medical visits with our doctors. Facebook has announced plans to collaborate with imaging companies to facilitate access to MRI, PET and CAT scans. Do you think that Amazon and Facebook will not somehow manage to have that information “stick to their fingers”? Would you trust Amazon or Facebook or any company with those kind of records.

      • Good points! Trying to keep your personal data private just won’t get you very far these days–it’s already all out there and circulating. It’s still good to be worried about it on a large scale, though, since what we really don’t want is for the monetary incentives to drive the market towards more invasive and less ethical uses of data. Targeted ads are generally fine, but they are generally intended to manipulate people into buying/doing/thinking things, and humans can be fairly susceptible to those pressures. Add to that the possible dangers of having massive amounts of demographic and behavioral data that could be tied back to a specific person and it becomes a bit of a security risk and even a possible tool of discrimination.

        I personally am learning data analysis and I’m deeply interested in behavior and decision sciences, so I think there’s a huge amount of good these tools can do. There are real concerns that we have to deal with too, though.

        • “what we really don’t want is for the monetary incentives to drive the market towards more invasive and less ethical uses of data”
          Too late for that that. :-) Ever hear the expression “Knowledge is Power”? It used to mean academic knowledge. Ever since the Internet came into existence, that has become knowledge of as many facts about as many people as possible. Today data is what gold was in the past – the coin of the realm.

          “Targeted ads are generally fine”
          I find targeted adds way off-target. Most of them are for items I have already purchased and don’t need more of.

          “they are generally intended to manipulate people into buying/doing/thinking things”
          That has been the purpose of all advertising since Day 1.

          “the possible dangers of having massive amounts of demographic and behavioral data”
          Isn’t that what political advertising is based on?

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