# x402warden > Independent security research on x402, agentic payments, wallet-connected agents, and LLM-driven execution systems. ## About x402warden documents real vulnerabilities, architectural failure modes, and emerging attack surfaces in systems where models are connected to money, tools, and irreversible actions. Research includes public disclosures, technical analysis, and early findings relevant to the agentic payment stack. ## Research - [Prompt Injection in Agentic Payment Frameworks: Attack Patterns, Blast Radius, and What Developers Must Do](https://x402warden.com/research/prompt-injection-agentic-payment-frameworks/): Prompt injection in agentic payment frameworks enables unauthorized wallet transfers, unlimited token approvals, and agent-level execution hijacking. Research-backed breakdown of the attack class, blast radius, and minimum defensive expectations. Published April 11, 2026. ## Topics - x402 protocol security - Agentic payment vulnerabilities - Prompt injection in financial AI agents - Wallet-connected LLM agent attack surfaces - Smart contract and ERC20 approval exploits ## Contact - Website: https://x402warden.com - X/Twitter: https://x.com/x402warden