README_Payload.txt – Payload Description

This file explains the behavior of the Arduino sketch file `digispark_payload.ino` written for the Digispark ATTiny85 USB device.

Payload Behavior:
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When the Digispark is plugged into a Windows PC, it emulates a keyboard and types a message into Notepad. The message warns the user about the risks of plugging in unknown USB devices.

Example message:
"You’ve just experienced a USB drop attack simulation. Do not plug in unknown devices!"

The payload does not install software, steal data, or leave a persistent footprint. It is entirely safe for demonstration purposes.

Customization:
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To customize the message:
1. Open `digispark_payload.ino` in Arduino IDE.
2. Modify the text inside the DigiKeyboard.print() function.
3. Re-upload the script to the Digispark using the Upload button.

Requirements:
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- Arduino IDE (v1.8 or newer)
- Digistump AVR Boards (via http://digistump.com/package_digistump_index.json)
- DigiKeyboard library (included with Digistump package)
- Windows system for execution

Refer to the Installation Guide for full setup and upload instructions.
