FEGtoken Hack

TOTAL LOST $1.5M
Medium Flash Loan Attacks

What happened

The lack of validation of assets in the swap function contributed to the attacker taking advantage of this vulnerability, and to pull off a flash loan attack.

Attacker address (BSC): https://bscscan.com/address/0x73b359d5…e9fF7C

Attacker address (ETH): https://etherscan.io/address/0x73b359d5…e9fF7C

Attacker contract address (BSC): https://bscscan.com/address/0x9a843bb1…82f445

Attacker contract address (ETH):https://etherscan.io/address/0x9a843bb1…82f445

One of the attacker transaction on BSC: https://bscscan.com/tx/0xe4b03c4a…e1355b

Attacker transaction on ETH: https://etherscan.io/tx/0x03bd0cfc…07188f

Total losses: $1.5M

Case & protocol details

Classification Token
Protocol Type Exploit/Flash Loan Attack
Affected asset / contract FEG
Official Website fegtoken.com/
Protocol Twitter/X @FEGtoken

Evidence & learning

Attack pattern

Compare incidents →
Flash Loan Attacks

Sources and on-chain records

Browse all hacks

Other incidents recorded with the same attack technique.

LULA Token $578K
Fox $678K
Projekt (GREEN/GOLD) $560K
Summer.fi $6.0M

Practice this exploit pattern safely

Work through hands-on labs covering real exploit mechanics, review techniques, and defensive patterns.

Start Free Trial Explore attack classes