Key points
Scammers exploit multi-signature wallets by deceiving victims into granting them partial control or full ownership, turning a security feature into a vulnerability.
Common methods include bait-and-switch schemes - secret phrase - recovery phrase that lure victims into funding wallets controlled by scammers, and the power grab that excludes victims by adding scammers as co-owners or owners.
Protect yourself by never importing the seed phrase - secret phrase - recovery phrase provided by others, never sharing your own seed phrase - secret phrase - recovery phrase, always reviewing transactions before signing, carefully checking websites, and regularly inspecting your wallet's permissions.
"The more signatures, the more security." But what if one of them is now in the hands of a scammer?
The multi-signature feature (MultiSig) is designed to enhance the security of cryptocurrencies by requiring multiple private key signatures to approve a transaction. Instead of having a single point of failure, control is distributed—so even if one key is compromised, the attacker should not be able to transfer funds without the other keys.
But this additional layer of protection has recently become a double-edged sword on TRON. Scammers exploit the network's flexible permission system that allows users to precisely control who can access and manage their accounts. In this blog, we will explain how MultiSig is being warped from a shield into a weapon—and what TRON users should be vigilant about.
The permission structure in TRON
TRON accounts use a permission system that allows for precise control over the actions different keys can perform. For our purposes, the following two types of permissions are the most relevant:
Owner permission: Controls high-level actions like modifying account permissions or transferring ownership.
Active permission: Regulates ordinary operations like transferring funds or interacting with smart contracts.
To execute, any transaction on the TRON network must be signed by a private key or a set of keys within a multi-signature setup that has the appropriate permission and meets the required threshold for that specific action.
How MultiSig is exploited
In a typical MultiSig scam, the attacker finds a way to become one of the required signers—either by tricking the victim into granting them access permission, or by exploiting vulnerabilities in smart contracts or platform permissions. On the TRON network, this method takes two forms.
1. Seed phrase - secret phrase - recovery phrase and private key traps
These scams spread seed phrases - secret phrases - recovery phrases or private keys across multiple platforms like YouTube and X, hoping to lure unsuspecting users into interacting with them.
Setup: Scammers claim they are unsure how to transfer funds out of the wallet. They publicly share the seed phrase - secret phrase - recovery phrase, asking others to import it and help transfer the funds—sometimes even promising a reward.
The bait: The wallet appears to be loaded with a large amount of tokens or USDT, enticing victims to quickly transfer funds out.
The trap: Although the wallet contains many tokens, it lacks sufficient TRX—the native currency required to pay transaction fees. Victims often send their TRX to cover these fees, driven by the desire to transfer funds.
The realization: After funding the wallet with TRX, victims discover they cannot complete any transactions because the wallet is actually under the scammer's control. The scammer then moves the TRX that the victim sent—resulting in a loss for the user.
Since setting up a multi-signature wallet requires multiple signatures—signatures that the victims do not possess—users who send small amounts of TRX to cover transaction fees end up unable to transfer any funds. Scammers publicly spread these wallets seeded with the seed phrase - secret phrase - recovery phrase across social media, hoping many will fall for the bait and send TRX without any direct interaction. Over time, scammers collect large amounts of TRX passively while keeping complete control tightly secured.
2. Account permission hijacking
Not all multi-signature wallet scams are simple bait-and-wait traps. Some are more complex and insidious—designed to trick you into adding the scammer as a co-owner or co-signer of your wallet. Once they gain this foothold, they can either freeze your funds or, in some cases, take complete control of your wallet and drain it entirely.
Setup: Scammers direct users to malicious websites, either by impersonating trading platform support staff or by promoting fake free distribution opportunities through social media.
The bait: You are asked to claim a free distribution or link your wallet to participate in a promotional offer. What’s the goal? To get you to sign a transaction that seems harmless.
The trap: The transaction is not what it seems. Instead of claiming a reward, you unknowingly agree to update your account permissions. The details are hidden within confusing terms—or obscured behind an ambiguous “Approve” button.
The realization: Once you sign the transaction, your wallet permissions change. In some cases, full ownership rights are transferred to the scammer. In other cases, the scammer adds themselves as a co-signer, establishing themselves as a required participant for all future transactions.
And with the wallet now requiring multiple signatures to transfer any funds—signatures no longer controlled by you—you effectively become locked out.
Note: Similar tactics have been observed on Solana as well. There, scammers trick users into signing transactions that transfer rights on token accounts or grant broad execution rights, leading to the same outcome: loss of control.
How to protect yourself from multi-signature wallet scams
Protect your seed phrase - secret phrase - recovery phrase: The seed phrase - secret phrase - recovery phrase is the master key to your wallet. Never share it with anyone, and never import private keys or the seed phrase - secret phrase - recovery phrase provided by others, no matter the reason.
Stop and think before signing: Always double-check what you are about to agree to. Whether it’s a transaction or a message, take a moment to understand what you are signing.
Check website URLs: Pay attention to subtle warning signs like typos, strange fonts, or unfamiliar layouts. These may indicate phishing sites designed to mimic legitimate platforms.
Check your wallet permissions: Use a block explorer like tronscan.org to inspect the permission settings of any wallet:
Paste the wallet address into the search bar.
On the wallet account page, look for any prominent indicators of permissions that suggest changes have occurred.
Click on the [View Account Permission] button or the [Account Permission] section on the page to see the full details of who controls the wallet and what level of access they have.
Stay vigilant and informed: In Web3, your best line of defense isn’t just a strong password, but staying informed. From seed phrase - secret phrase - recovery phrase traps to account permission hijacking, scammers continually devise new methods to exploit features like MultiSig on TRON. Don’t let them catch you off guard. Stay updated on evolving scams by following reliable sources like Binance Academy, our Know Your Scams series, and security blogs. The more you learn, the harder it is for them to deceive you. Knowledge is not optional. It’s your shield.
Closing thoughts
Multi-signature wallets are designed to enhance security, but in the wrong hands, they can become a weapon against you. The good news is that you don’t need to be a tech expert to stay safe: just be vigilant and ask questions about everything. Never share your seed phrase - secret phrase - recovery phrase, never import keys from strangers, and don’t sign transactions without scrutiny. Make reviewing your wallet permissions a habit, and most importantly, keep learning, because knowledge in Web3 is not just power, but your strongest layer of protection!
For further reading
Please note: There may be discrepancies between this original content in English and any translated versions (which may be generated by artificial intelligence). Please refer to the original English version for the most accurate information, in case of any discrepancies.