Estonia's Financial Supervision Authority completed a large-scale test in 2024 of the automated sanctions-screening controls used by banks, payment institutions and an investment firm to identify sanctioned individuals and companies. Overall performance was assessed as generally good, but the exercise identified some filtering systems requiring additional support. The test, run with an external technology services provider, used supervisory technology to assess tens of thousands of data entries across 38 different filtering systems at 15 firms (12 banks, two payment institutions and one investment firm) against international and Estonian sanctions lists, including those of the United Nations, the European Union and the USA. The authority highlighted that technology alone is not sufficient, as sanctions experts are needed to configure and calibrate systems to each institution’s business model, and the same vendor solution can produce different outcomes across firms depending on setup.