Hardware Security Modules Redefine Transaction Architecture
In MoonPay's new model, when AI agents prepare transactions, private keys are securely stored in an offline environment within hardware security modules. These keys never come into contact with the public internet; instead, all transaction signatures are generated inside Ledger's secure chip. This hardware-centric approach significantly reduces the risk of malicious actors or harmful code accessing private keys. Compared to traditional 'hot wallet' systems, which are often used for autonomous trading, this solution eliminates vulnerabilities associated with software wallets, bringing the high protection of cold storage into the realm of autonomy.
Programmable Restrictions and Goal-Driven Transaction Experience

Expanding the Crypto Security Agenda
This week, Ledger's security research team discovered a critical vulnerability in Android devices, highlighting the importance of hardware-based key protection. They explained that malicious applications could extract recovery phrases in seconds, putting users at risk. In this context, the team emphasized that only hardware wallet-based solutions can provide true protection.
Meanwhile, according to data shared by Circle, by early 2026, 98.6% of AI-driven financial transactions will be completed using USDC. During this period, over 140 million transactions have occurred, indicating that business activities driven by autonomous agents have become a reality on a large scale, rather than a distant prospect.

Next-Generation Authentication Layer
While protecting private keys and implementing strict transaction rules enhance overall security, high-value operations expose another challenge—verifying that transactions are indeed initiated by humans. To address this, Worldcoin recently launched a facial authentication feature for identity verification. This privacy-centric system authenticates users by securely storing encrypted facial data on hardware devices, eliminating the need to transmit or retain biometric information elsewhere.
The integrated system—combining hardware-stored keys, programmable restrictions, and advanced authentication—is designed to fill the critical gap that has led to millions in losses due to past security vulnerabilities. The collaboration between MoonPay and Ledger is one of the first large-scale implementations in the industry, ushering in a new era of safer autonomous crypto transactions.

