Today, we are dissecting one of the most sobering wake-up calls in decentralized finance and custodial architecture: the $350 million Bitget hot and warm wallet exploit.
For years, the industry’s security playbook fixated on smart contract vulnerabilities, code audits, and safeguarding private keys via multi-party computation (MPC). But recently, an attacker proved that protecting private keys isn’t enough when the pipeline feeding those keys is compromised. The attacker didn’t steal private keys; they took over the backend orchestration that feeds transaction payloads to the signer—tricking the exchange’s legitimate signing infrastructure into producing authorized signatures for catastrophic drains.
Raz is here with an elite cyber-intelligence perspective to break down how the threat landscape is migrating upstream from deployed bytecode to signing pipelines and backend telemetry. We’ll explore the mechanics of this exploit, why “valid signatures” can still mean total compromise, and what independent validation layers look like as autonomous systems reshape digital asset infrastructure. Here we go.
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