[Balancer Project Suffers Complex Attack, Losses Exceed $120 Million] BlockSec Phalcon monitoring indicates that several projects based on Balancer were subjected to a complex attack hours ago, resulting in losses exceeding $120 million. Preliminary analysis suggests that the attackers manipulated invariants to distort BPT price calculations, profiting from specific stable pools. Taking the attack transaction on Arbitrum as an example, the attack unfolded in three stages: adjusting the cbETH balance to the rounding boundary, leveraging precision loss to suppress BPT prices, and reverse-swapping underlying assets for profit.