Hackers Pose as Recruiters: New Trap for IT Professionals in Web3 and Crypto Space

Ukrainian Senior Frontend Engineer Denis Bilousenko shared his personal experience resisting hackers who attempted to steal his personal data under the guise of a job offer. This was reported by dev.ua. The scheme, known in cybersecurity circles as Contagious Interview, targets professionals in the Web3 and IT sectors.

How the Contagious Interview Scheme Works

According to Bilousenko, the attack begins with a seemingly ordinary message in a messenger or on professional platforms. Hackers pose as recruiters from well-known companies and offer a high-paying position. After a brief conversation, the candidate is sent a test task in the form of a link to a GitHub repository. The victim is asked to clone the repository and run the code locally. It is at this exact stage that infection occurs: malicious code activates, and attackers gain access to the system.

As the developer notes, «from git clone to a compromised machine — less than 5 minutes». This means fraudsters act extremely quickly, using automated scripts to steal passwords, cryptocurrency wallet access keys, authentication tokens, and other confidential data.

Why This Matters for Small Business

Although the attack targets IT professionals, it has broader implications. Small businesses working with cryptocurrencies or hiring developers for Web3 projects risk losing access to financial assets or corporate data. If a hacker gains control over an employee’s work machine, they can steal cryptocurrency wallet keys, exchange accounts, or access to internal systems.

Moreover, the Contagious Interview scheme can be used to attack small business clients. For example, if a company posts job openings, fraudsters may mimic its recruitment process to gain access to candidate data. This undermines brand trust and can lead to reputational damage.

How to Protect Yourself

Bilousenko recommends never running code from unverified sources on work machines. For test assignments, use isolated environments such as virtual machines or containers. It is also crucial to verify recruiters’ authenticity through official company channels before taking any action.

Small businesses can strengthen security by implementing a policy requiring the use of sandboxes for testing third-party code, as well as training employees to recognize phishing attacks. Regular software updates and multi-factor authentication also reduce risk.

Conclusion

The Contagious Interview scheme poses a serious threat to IT professionals and companies operating in the Web3 and cryptocurrency space. Small businesses must be especially cautious during hiring, as a single mistake can result in the loss of assets or data. Investing in cybersecurity and staff training are key steps to prevent such attacks.

💡 Need help with the topic of this article? Learn about our service — AI widgets for business.