Web3: The dark side of COPY/PASTE command


They say security is as strong as its weakest link. Well, it is. What if, despite faithfully safeguarding your private key using trusted security services, you still get hacked? What if I tell you that you are more of a target than the web3 technologies? But do not fret, walk with me for these 2 minutes.

Today, we will tell a story of a friend’s encounter with a cunning piece of malware, CryptoShuffle Trojan, and how to protect against it as a blockchain user.

Keywords: Wallet address, Malware, CryptoShuffle Trojan,


Malware, as the name implies, is malicious software that runs on a host with the intent to disrupt either the confidentiality, integrity, or availability of the host or its services. We have different types of malware, including but not limited to viruses, worms, and Trojans.

A Trojan is essentially a file, program, or piece of code that appears safe but is, in fact, malware. It’s a deceptive and cunning form of malware, isn’t it? :face_holding_back_tears:

The Encounter

I quote, “On 12/09/2023, I narrowly escaped a potentially devastating loss of $20k worth of ETH. It would have been a gargantuan loss if I wasn’t careful. Here was what happened: I needed to send funds to a friend who copied his wallet address from MetaMask. Unfortunately, his computer clipboard had been infected with a trojan called CryptoShuffle. The wallet address he copied was completely different from the wallet address sent to me. As a security check, I sent a few dollars to verify the integrity of the wallet address. Fortunately, I noticed the security breach which prevented me from falling victim.”

How to protect?

  • Test the water

From the story, a security check by sending a few dollars to the recipient’s address was used. This is the best proactive approach to securing against this cunning malware.

  • Manual check

From my perspective, this will be my second menu on the list for initiating immediate transactions and conducting offensive security check. But this is prone to human error and can be time-wasting. Can you imagine manually comparing wallet addresses? It can indeed be a daunting task!

  • The Traditional security measures

These are security practices that cannot be overemphasized when it concerns a regular user of the internet. These security practices are but not limited to Antivirus software, Regular software updates, phishing awareness, and Browsing Security.

Luckily, we have a number of security-leading companies in the Web3 space that are committed to your safety:

Webacy (tested)


Eagle_Eye (this account :grin:).


Proactiveness has always been the best approach to security. STAY SAFE!

The comment box is open to questions, contributions, and suggestions for improvement.

Thank you!

Eagle_Eye: …abstracting the complexity of web3 technologies and ensuring a safer space even for your grandpa.


You did well by sharing your experience too @Prince-Onscolo Has been evangelizing about security and particularly about this same issues you narrated above which he has been a victim but learned the hard way