💡 A web app is like a “program” you can use without installation, just with a modern browser like Firefox, Safari, or Chrome. 🚀

Here’s how it works:
1. 🌍 User enters a URL in their browser.
2. 📨 Browser sends a request to the server.
3. 💻 Server processes this request.
4. 🗄️ If needed, server fetches data from a database.
5. 🔄 Server sends a response back to the browser.
6. 👀 Browser displays the web page to the user.
7. 🔄 User interacts with the web app, making new requests as needed.

📲 No installation needed, just browse the page! Understanding this flow is crucial before diving into web application security. Stay tuned for more insights! 🔒✨