The trail that builds up
Show on a big screenYou post one photo at the ground on a Saturday. Alone, it says little.
- Two trails: what others can see, and what the service keeps.
- One photo posted at the ground. A photo can carry the place and the time.
- Another photo, same spot, another Saturday.
- Two items that agree = a pattern.
A service is an app or a website. Your digital footprint is what you post, plus what a service keeps. One item says one fact. Two that agree say a pattern. Two Saturdays at one ground may show where you often go.
You leave some footprint on purpose and some without knowing.
| Others can see | Service keeps | |
|---|---|---|
| Example | A post, a comment, a public like | Your searches, what you watched |
| Who reads it | Anybody who reaches the page | Mostly the company running the service |
An OTP is a one-time code sent to your phone. Never share passwords or OTPs. Do not post your address, or where you are. Ask a grown-up before you post anything about yourself.
Watch out!
Deleting a post does not undo it. Anybody who saved or shared it still has it.
Ask a grown-up you trust to help with anything already posted.
Add posts one at a time. See what a stranger could learn.
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Try the lab to finish this lesson.