Privacy and Security
In class we discussed the topic of privacy, security, and digital footprint. These are all topics that would be important to discuss with students, as most adolescents spend a lot of time on the internet. Based off today’s material, I thought about how I would make these topics easy to understand for a student. This is what I would say to them:
Have you ever talked about something random, and then suddenly see ads about it on your phone? It can feel like your device is listening to you. While that idea is unsettling, the reality is actually more complex and rooted in your digital footprint.
Your digital footprint is the trail of data you leave behind whenever you use the internet. This includes the websites you visit, the apps you use, your location, and even the people you interact with. Companies collect and analyze this data to build a detailed profile of you. This is where privacy and security come in. Many users don’t realize how much information is being gathered and shared behind the scenes.

So why does it feel like your phone is listening? Instead of recording conversations, companies rely on advanced tracking methods like browser fingerprinting and social graphing. Browser fingerprinting collects details about your device like screen resolution and time zone to create a “signature” that identifies you across websites, even in incognito mode. Social graphing then connects your activity with your friends’ activity, meaning if someone you know searches for something, you might start seeing related content too. This creates the illusion of being listened to, but it is just algorithms that are good at predicting your interests.
The good news is that you can take steps to protect your digital privacy. First, disabling app tracking on your phone limits how apps share your data across platforms. Second, using privacy-focused browsers like Brave or Firefox, along with extensions such as uBlock Origin, helps block trackers and reduce fingerprinting. Finally, you can request that data brokers delete your information, either manually or through paid services.
Understanding your digital footprint is key to navigating today’s online world. While the technology behind targeted ads is powerful, being aware of how it works allows you to take control of your privacy and make more informed choices online.
Let me know the types of information you would share with your students, and how you might go about doing it.
Cheers,
Rylie