Shared Data
Shared data
Modern organisations collect and share vast amounts of data as people use their services online. Understanding what types of data are shared — and the implications of that sharing — is essential for anyone working in a digital environment.
Types of shared data
Location-based data is information collected about where you or your device physically are. Every time you use Google Maps or check in somewhere, your device shares your location. Organisations use this data to offer relevant services — for example, a food delivery app needs your location to show nearby restaurants.
Transactional data is the record of actions or exchanges — purchases, logins, searches, clicks. When you buy something online, the transaction is logged: what you bought, when, how much, and from where. Over time, this builds a detailed picture of your behaviour.
Cookies are small text files stored on your device by websites you visit. They remember things like your login status or what's in your shopping basket. Websites also use cookies to collect analytics data to improve the site, and for performance purposes. There are session cookies (deleted when you close the browser) and persistent cookies (which stay and track you across multiple visits).
Data exchange between services happens when one platform shares your data with another. For example, logging into a website using your Google account means both services exchange data about you. This is also common between apps and advertising networks.
Unlock All Revision Notes
Syllabus-perfect, clutter-free summaries — so you only study what really matters.
Start your 7-day free trial (no card needed!)Existing User? Sign In