PolySwarm is a blockchain-based cybersecurity marketplace that leverages crowdsourced threat intelligence to detect and analyze malware. It connects security experts, antivirus companies, and enterprises to improve protection against emerging threats. The platform uses a token-based incentive system, rewarding contributors with Nectar (NCT) tokens for accurate threat detection. PolySwarm's capabilities include early threat detection, unique malware samples, and a proprietary PolyScore system for threat scoring to enable automated security operations. It also features specialized detection engines, integration with security tools, and a browser plug-in called NectarNet that rewards users for contributing browsing data to enhance threat intelligence. The marketplace operates on a decentralized model, facilitating collaboration between researchers and enterprises to combat cyber threats effectively.