Every sanctions screening tool requires you to transmit subject data somewhere. The question compliance officers rarely ask — but regulators increasingly do — is: where does that data go, and who governs it once it leaves your system?
Cloud-based screening platforms route every search through their infrastructure. Your subject names, entity identifiers, and transaction parties travel to a vendor’s server, are processed, and return a result. Most vendors have acceptable-use policies and data-processing agreements. Most do not make those easy to produce to an examiner who wants to understand your third-party data sharing.
What “local-first” actually means
A local-first screening tool processes searches on your own hardware. The watchlist data is fetched and cached locally. The matching logic runs on your machine. No subject name leaves your environment unless you choose to export a report.
For firms operating under strict data residency requirements — healthcare, legal, financial services in certain jurisdictions — local-first is not just a preference. It is the only architecture that satisfies the constraint without a complex data-processing agreement.
The trade-off table
- Cloud: always up-to-date lists. Local: you control the update cadence.
- Cloud: subject data exits your environment on every search. Local: data stays on your machine.
- Cloud: vendor DPA required for GDPR / CCPA purposes. Local: no third-party data sharing.
- Cloud: per-search billing creates compliance rationing risk. Local: flat cost, unlimited searches.
The right choice depends on your regulatory environment, your data residency obligations, and your risk tolerance. But the choice should be explicit — not an accident of which vendor your firm signed up with first.