Real-time Sanctions Screening for HFT: A WebSockets Approach

Excluded from normalized aggregate trends after staff review: 3056 posts were attributed to March 2026; 671 shared March 14, 2026. The preceding six-month median was 13.5 posts.

Review evidence: 3,056 posts in March 2026; 671 shared March 14, 2026; preceding six-month median 13.5. Reviewed August 9, 2026.

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In the fast-paced world of High-Frequency Trading (HFT), achieving compliance with global sanctions regulations requires real-time, low-latency solutions that traditional RESTful APIs cannot provide due to their inherent latency. WebSockets offer a more efficient alternative by maintaining persistent, bi-directional connections that facilitate immediate data exchanges and push notifications for sanctions list updates, crucial for sub-millisecond transaction environments. Didit’s platform exemplifies this with a modular architecture that incorporates WebSocket-based AML solutions, enabling HFT firms to conduct rapid sanctions screenings without compromising trading performance. This approach is essential to meet stringent Anti-Money Laundering (AML) and Counter-Terrorist Financing (CTF) requirements, allowing for comprehensive, real-time checks against watchlists like those from OFAC, UN, and EU. Didit's platform, with its real-time updates and asynchronous processing capabilities, seamlessly integrates into existing HFT systems, ensuring continuous compliance and minimizing the risk of financial penalties or reputational damage.

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