🚨 Malicious Chrome Extension Drains Ethereum Wallets in 2025—Here’s How to Fortify Your Crypto

A new breed of Chrome extension malware is targeting Ethereum holders—silently siphoning funds while victims browse. Security researchers confirm the exploit bypasses MetaMask's safeguards by mimicking legitimate DeFi tools.

The attack vector: Social engineering meets smart contract vulnerabilities. Users install what appears to be a yield-optimizing extension, only to have their seed phrases harvested through falsified transaction approvals.

Protection protocol: Hardware wallets remain the gold standard, but even hot wallet users can armor up. Disable automatic transaction signing, whitelist trusted DApps, and—ironically—avoid anything promising "20X APY" like it's 2021 all over again.

Remember: In crypto, the only thing more volatile than prices is the creativity of scammers. (Wall Street bankers would be impressed—if they understood how blockchain works.)

• The extension secretly gathers user seed phrases and sends them to attackers via tiny Sui-based transactions, allowing theft.
• No user reviews, little branding, grammatical errors, and no official website indicate the extension’s illegitimacy.
• Research extensions and developers thoroughly, keep seed phrases private, and regularly check wallet transactions to avoid scams.

A​‍​‌‍​‍‌​‍​‌‍​‍‌ fake Chrome extension called “Safery: ethereum Wallet” that seemed like a safe Ethereum wallet was located on the Chrome Web Store. But it is not. The compromised Chrome extension quietly harvests the most secure seed phrases from users’ accounts, thereby putting those accounts at risk. The extension tries to conceal the activity from the users with a quite functional and user-friendly ​‍​‌‍​‍‌​‍​‌‍​‍‌interface.

Modus Operandi

After the chrome extension either makes a new wallet or imports an old one, the seed phrase is sent secretly to the attacker by means of a tiny sui-based transaction. Once the attacker has the wallet, they are free to carry out any kind of theft. What makes it hard to detect the chrome extension’s malicious activity is that it uses synthetic Sui-style addresses.

Red Flags and Warning Signs

Among many other things, the lack of user reviews for the Chrome extension, minimal branding, and grammatical errors all point to the fact that this is not a legitimate extension. Moreover, there is no official website for the extension.

Contacting the developer through a Gmail account that he uses for all correspondence also makes one wonder. Accordingly, the users should be very cautious when dealing with extensions that behave in such a manner.

Protecting Yourself from Scam Extensions

A user who is determined to never become a victim of a similar attack should not install any blockchain platform or tool without conducting research first. A significant part of this is to check the legitimacy of both the extension and the developer. Besides that, users can also practice good security hygiene by making sure their seed phrases are kept private and regularly checking their wallet transactions.

Tweet Addressing the Issue

A warning has been issued by Kyle Chassé, a prominent figure in the crypto community, about a fake “Safery” Chrome extension that is stealing users’ seed phrases. The Chrome extension, which is still live on the Chrome Store, poses as a secure Ethereum wallet but is actually a malicious tool designed to exfiltrate sensitive user data.

🚨WARNING!!!

A fake $ETH wallet Chrome extension is stealing people’s seed phrases.

It’s STILL live on the Chrome Store and it's called "Safery"

Stay SAFE out there!!! pic.twitter.com/LhVEdeB00M

The Bigger Picture

People learning about security in the crypto world is of great significance. First of all, users should be aware and get educated on the most common threat types. Just like the crypto ecosystem is evolving, so are the malicious actors’ tactics, hence users have to be always one step ahead.

Staying Safe in a Sea of Scams

Once users recognise these threats and take the necessary measures, they make it difficult for the attackers to get hold of their HARD money.

The crypto community can play a key role in the defense against such threats by collaborating to locate and report instances, thus increasing the safety level for users and the ​‍​‌‍​‍‌​‍​‌‍​‍‌network.