Ever get the feeling that companies know a little too much about you? Like, you mention needing new running shoes in an email, and suddenly every ad on your phone is for sneakers? Well, you’re not imagining things. Businesses are like digital detectives, constantly collecting your data in ways that might surprise (and maybe even creep) you out. Here are five sneaky ways they get their hands on your info—and no, it’s not just about those cookies you blindly accept on every website.
Your “Free” Email Isn’t Free
Think that free email service is just a nice perk of the internet? Think again. Many email providers scan the content of your emails for keywords that advertisers can use to serve up eerily relevant ads. So, if you email your friend about a tropical vacation, don’t be shocked when travel deals start popping up everywhere—sometimes even outside your inbox.
And it’s not just emails you send—some providers analyze even your drafts. If you start typing about wedding plans but never send the email, don’t be surprised when you start seeing ads for wedding venues and dresses. Additionally, attachments and subject lines can also be scanned for marketing purposes.
Even the metadata of your emails—such as whom you communicate with most frequently, the times of day you send emails, and the locations from which you access your account—can be analyzed to build a detailed profile of you. This data is then used to categorize you into different consumer groups, allowing advertisers to tailor their messaging even more effectively.
Beyond advertising, some email providers share anonymized data with third parties, which can be used for everything from political campaign targeting to financial product promotions. This means that the information you share—even unintentionally—can be leveraged in ways you might never have anticipated.
To protect your privacy, consider using encrypted email services like ProtonMail or Tutanota, or simply be mindful of what you write in your emails. Adjust your email settings to limit tracking, and regularly clear your stored email history if your provider allows it. Also, consider using a paid email service that doesn’t rely on ad revenue, as these are less likely to scan your messages.
Messaging Apps Aren’t Always Private
Texting your best friend about a new diet plan? Guess what—some messaging apps are scanning those words too. While many claim to have end-to-end encryption, some still analyze messages to improve their “services” (translation: help advertisers sell you things).
For instance, some messaging platforms track frequently discussed topics. If enough users are talking about a particular brand or restaurant, that data can be sold to businesses to refine their marketing. And it’s not just text—some apps analyze emojis, GIFs, and even voice messages. If you send a lot of messages about coffee, don’t be surprised when you start seeing ads for new coffee brands.
To avoid this, consider switching to messaging apps with strong encryption and privacy policies, like Signal or Telegram.
Rewards Programs: The Ultimate Loyalty (to Themselves)
That gas station or grocery store rewards card might save you a few bucks, but it’s also keeping tabs on everything you buy. Companies use these programs to track your spending habits, what brands you prefer, and even your location.
If you always buy organic foods, for example, grocery chains may use that data to target you with specific promotions on similar items. Some programs even share data across multiple stores, meaning that buying baby formula at a supermarket could lead to diaper ads popping up at a pharmacy app you use.
And it doesn’t stop there—many loyalty programs track how often you visit stores and how long you stay. Some even use geolocation to see if you’re visiting competitors.
If you’re worried about privacy, consider using cash or digital wallets when making purchases instead of scanning your rewards card every time.
Your Smart TV is Smarter Than You Think
Your smart TV isn’t just streaming your favorite shows—it’s also taking notes. Some TVs track what you watch, how long you watch it, and even what you do afterward. Bought concert tickets right after watching a music documentary? Your TV might connect the dots and start showing you related ads.
Some smart TVs have motion sensors that can detect if someone is in the room, and even microphones that listen for voice commands—but who’s to say they aren’t listening to more than that? If you talk about needing a new couch while watching TV, you might soon see furniture ads appearing online.
Streaming devices like Roku and Fire Stick also monitor viewing habits and share that data with advertisers. To limit this, go into your TV’s settings and disable “Automatic Content Recognition” (ACR) or other tracking features.
In-Store WiFi: The Invisible Tracker
Ever connected to a store’s free WiFi? Surprise! You just gave them permission to track your online activity. Some retailers monitor what sites you visit while shopping, how long you stay in the store, and even whether you return.
But it doesn’t stop there. Some stores are now experimenting with tracking your license plate in parking lots to link your visits to your shopping history. Others use Bluetooth beacons that communicate with your phone—even if you never connect to WiFi. If you linger near a display of shoes but don’t buy anything, you might later see an online ad for those exact shoes.
And some retailers take it even further, using security cameras and facial recognition technology to track how often you visit and what products you look at.
To avoid this, keep WiFi and Bluetooth turned off when shopping, and consider using a VPN if you must connect to public networks.
o, what can you do about all this data tracking? While you can’t go completely off-grid (unless you’re ready to live in a cabin in the woods), you can take small steps like using privacy-focused email providers, disabling tracking settings on your devices, and thinking twice before signing up for every rewards program.
Other smart moves include using ad blockers, VPNs, and privacy-friendly browsers like Brave or Firefox. And remember, if something is free, there’s a good chance you’re the product. Stay smart, stay aware, and maybe—just maybe—cover your smart TV’s camera with a piece of tape (just in case).