Phantom Text

Can you read what isn't there? 👻

Challenge Updated 03 Feb 2026 Free Access Solution (Pro)

A whistleblower's secret message hides in plain sight within an ordinary blog post. The text looks completely normal, but invisible characters carry a covert payload. Master zero-width Unicode steganography and decode the phantom message that nobody else can see!

Flags

Points

61%

Success Rate

Start Your Challenge

Launch your dedicated machine to begin hacking

~1-2 min setup

Dedicated server

Private instance

Industry standard

Open the target and find the flags

Flag

+5 pts

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Phantom Text

Challenge 5 points

Writeup Guidelines

Share your solution approach, methodology, and insights. Your writeup will be reviewed before being published to the community. Earn +5 bonus points when your writeup is approved!

Requirements:

No flag content: Do not reveal actual flag values or passwords in your writeup
Include lab link: Your writeup must contain a direct link to this lab for reference
Educational focus: Explain your methodology, tools used, and learning insights

Writeup URL *

Link to your blog post, GitHub repository, or any platform where you've published your writeup
Remember to include this lab's URL in your writeup: https://hackerdna.com/labs/phantom-text

Language *

Help others find writeups in their preferred language

Confirmation Required

I confirm that my writeup includes a direct link to this lab

Your writeup must reference this lab's URL: https://hackerdna.com/labs/phantom-text

I confirm that my writeup does NOT contain flag content or critical information

Do not include actual flags, passwords, or other sensitive information that would spoil the challenge

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