Prompt

We intercepted a barcode we think might be hiding a flag. See if you can find it.

Walk-Through

This challenge will give you experience conducting lookups on a standard barcode. The challenge provides a .gif of the barcode.

Solve this challenge by using mobile barcode scanning apps or an online barcode reader. Below is a screenshot of the barcode using https://online-barcode-reader.inliteresearch.com/ :

Solution

The format for the barcode would be found under the “Type” field.

The flag is revealed when you uncover the values of the barcode.

Questions

1. What format does the barcode use?

You can find the format under the “Type” field.

2. What is the flag hidden in the barcode?

You can find the hidden flag by obtaining the value of the barcode in a barcode viewer.

©️ 2026 Cyber Skyline. All Rights Reserved. Unauthorized reproduction or distribution of this copyrighted work is illegal.