TryHackMe Hacker Holidays 2026 — Overheard at Breakfast Writeup

📅 Published 2-8-2026 ·ctfosintsocial-engineeringrecon

Written By Aryan Giri

Room: Overheard at Breakfast
Category: OSINT
Difficulty: Easy
Room URL: https://tryhackme.com/room/hh-overheardatbreakfast-6f01793c

Scenario

Sometimes the smallest details reveal the biggest secrets.

In this room, you're provided with a screenshot of a conversation overheard at the Byte Lotus Hotel breakfast area. The objective is to extract identifying information from the chat and use open-source intelligence (OSINT) techniques to locate a hidden online profile.

This challenge demonstrates how seemingly harmless conversations can expose enough information to identify someone online.


Task Files

Download and extract the provided archive.

After extraction, you'll receive a screenshot containing the breakfast conversation.

conversation

Analyzing the Conversation

Rather than reading the conversation casually, inspect every detail carefully.

The following indicators immediately stand out.

People Mentioned

Organization / Location

Social Media References

The conversation mentions:

Email Address

The biggest clue is the exposed email:

lambobytelotushotel@gmail.com

Additional Hint

Another person remembers that the profile service:

This is the key hint required to solve the challenge.


Identifying the Platform

Searching for profile aggregation services that:

quickly points to Gravatar.

Gravatar associates an email address with a globally recognized avatar and public profile used across many websites.


Using the Official Gravatar Email Checker

Gravatar now provides an official email lookup page.

https://gravatar.com/site/check

Screenshot 2026-08-02 131434

Enter the email discovered in the conversation:

Screenshot 2026-08-02 130347
lambobytelotushotel@gmail.com

The lookup returns information including:

Screenshot 2026-08-02 130405

Visiting the Profile

Open the discovered profile URL in a browser.

The profile itself appears mostly empty, but the description contains an interesting Base64-encoded string.

Screenshot 2026-08-02 130326

Decoding the Base64 String

Copy the Base64 string.

You can decode it using either CyberChef or the terminal.

Option 1 — CyberChef

Open:

https://gchq.github.io/CyberChef

Apply the recipe:

From Base64

Paste the encoded string.

Option 2 — Linux Terminal

echo "BASE64_STRING" | base64 -d

Both methods reveal the hidden flag.

As required by TryHackMe's write-up policy, the flag has been redacted.

Screenshot 2026-08-02 130444

Osint Flow

Conversation Screenshot
        │
        ▼
Extract Email Address
        │
        ▼
Identify Gravatar
        │
        ▼
Email Lookup
        │
        ▼
Open Public Profile
        │
        ▼
Find Base64 String
        │
        ▼
Decode Base64
        │
        ▼
Retrieve Flag

Skills Learned


Key Takeaway

This room is an excellent demonstration of how a single leaked email address combined with seemingly insignificant conversational details can expose a user's public digital footprint.

No exploitation or brute force was required—only careful observation, OSINT, and a simple Base64 decoding step.

It highlights why oversharing information, even in casual conversations, can unintentionally reveal far more than intended.