Harsh | Push Chain@harshrajat
The post mortem of LayerZero configuration and KelpDAO is an understatement on how interop gets complex for developers and ultimately leads to attack vectors that shakes up the foundation of DeFi.
There are couple of things that went wrong over here.
DVN 1-1 setup: In simple terms, relying on a single source of truth (contrary to decentralization principles) for faster implementation.
Attackers poisoned RPCs and then DDoSed honest nodes to force failover. This allowed a compromised node to accept a single fabricated cross-chain message, which was enough to trigger fake burn and lock mechanisms due to the 1-of-1 config.
Shifting responsibility to developers: While KelpDAO bears accountability, the harsh reality is that teams specializing in their core product often lack the bandwidth or expertise to master interop complexities. They either invest massive engineering resources or accept the risk.
Given the industry options: this is a bitter pill that every developer tries to swallow but even then mistakes will be made.
We didn’t specifically foresee this exact vector while reimagining interop as a chain-native primitive. However, the design we built at Push Chain has strong potential to minimize such risks.
How Push Chain enables secure universal execution across chains?
Push is a universal blockchain that makes chain-native interop as a fundamental primitive.
Deploy once on Push, and your protocol becomes instantly compatible with multiple L1s and L2s (including non-EVM chains) we support.
The engineering behind this is quite novel. We don’t burden developers with configuring specs or security parameters. Instead, universal validators provide a decentralized, self-strengthening security layer that grows with the network. Developers don’t need to learn complex specs, while the interop layer keeps getting stronger.
We have also introduced global and per-project token transfer limits (hourly and daily). These ensure speed in normal conditions via an instant route, while protecting funds during uncertainty with higher confirmation requirements.
This approach drastically reduces the attack surface. ie: protocols get secure, get instant interop by default (zero on-chain code change), without needing expert level configuration from their teams.
In the end, the engineering issues that shook DeFi are also an opportunity for us to reinvent ourselves. Even after all the incidents, there is not a single shred of doubt in my mind that DEFI WILL WIN!