---
title: "Researcher Solves 'Steal My Bitcoin' Challenge via Server Exploit"
description: "A participant breached the bounty system using a PHP exploit, prompting manual payout of the 0.02511679 BTC prize."
url: https://basisdesk.news/news/researcher-cracks-steal-my-bitcoin-challenge-php-exploit
published: 2026-10-26T13:09:37.414Z
modified: 2026-10-26T13:09:37.414Z
section: Security & Hacks
author: Basis Desk Newsroom (AI-generated, source-verified)
sentiment: neutral
tickers: [BTC]
tags: [bitcoin, security, exploits, php]
license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice.
---

# Researcher Solves 'Steal My Bitcoin' Challenge via Server Exploit

A participant breached the bounty system using a PHP exploit, prompting manual payout of the 0.02511679 BTC prize.

## At a glance

- **What happened:** A researcher compromised a 'Steal My Bitcoin' challenge using a PHP exploit to claim a 0.02511679 BTC prize [1].
- **Why it matters:** The operator had to manually disburse the bounty after discovering the server held the incorrect wallet key [1].
- **Who is affected:** The challenge operator and the security researcher who cracked the challenge [1].
- **What's next:** No next step announced.
- **Primary source:** [Researcher Cracks 'Steal My Bitcoin' Challenge With PHP Exploit](https://thedefiant.io/news/security/researcher-cracks-steal-my-bitcoin-challenge-with-php-exploit) — thedefiant.io

## Key points

- A researcher bypassed a 'Steal My Bitcoin' contest environment by executing a PHP exploit [1].
- The challenge carried a bounty balance of 0.02511679 BTC [1].
- The operator had to manually transfer the funds after finding the server held the wrong wallet key [1].

## Editorial remark

- **Context:** Public bounty contests frequently invite researchers to exploit hosted machines to prove cryptographic resilience [1].
- **Impact:** The researcher secured the 0.02511679 BTC prize following manual verification by the challenge operator [1].
- **Watch:** Bounty platforms typically review off-chain server environments to ensure local wallets match on-chain reward addresses.

A security researcher successfully solved an online "Steal My Bitcoin" security challenge by deploying a PHP vulnerability against the host infrastructure, according to a report from The Defiant [1]. The contest offered a total bounty of 0.02511679 $BTC [1]. At the time of writing, Bitcoin was trading near $80,124.

While the objective of the challenge was for contestants to extract the prize directly from the environment, an unexpected server configuration prevented the researcher from claiming the assets autonomously [1]. Upon auditing the machine post-exploit, the challenge operator discovered that the breached server actually stored the wrong wallet key [1]. 

## Server Misconfiguration Forces Manual Settlement

Because the compromised server contained an incorrect private key rather than the one controlling the designated challenge address, automated extraction failed despite the successful breach [1]. The operator confirmed the solution and subsequently executed a manual on-chain transfer to send the 0.02511679 BTC bounty to the researcher [1]. 

The incident illustrates common operational hurdles in web3 bounty infrastructure, where underlying web server flaws—such as PHP script misconfigurations—often take precedence over on-chain cryptographic controls. Past industry incidents, such as when [Electrum Patches Replace-By-Fee Vulnerability After Rogue Servers Steal Bitcoin](https://basisdesk.news/news/electrum-patches-rbf-vulnerability-malicious-servers), have shown how off-chain server environments regularly form the primary attack surface in cryptographic custody arrangements.

## Sources

1. [Researcher Cracks 'Steal My Bitcoin' Challenge With PHP Exploit](https://thedefiant.io/news/security/researcher-cracks-steal-my-bitcoin-challenge-with-php-exploit) — thedefiant.io, 2026-10-26

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Basis Desk Newsroom · AI-generated, source-verified · https://basisdesk.news/about/how-we-use-ai