Watchlist

Any list of people or entities you must check against.

A watchlist might name people barred from doing business, people in sensitive public roles, or customers a company has chosen to block.

A curated register of sanctioned, prohibited, or high-risk parties, compiled from sources like government sanctions lists, PEP databases, and internal blocklists, used as the reference set in screening. PEP stands for politically exposed person.

Watchlists come from several kinds of sources:

• Government sanctions lists, which name people and entities that laws bar businesses from dealing with.
• Politically exposed person databases, which list people in prominent public roles and their close associates.
• Law enforcement and regulatory lists, which name wanted or debarred parties.
• Internal blocklists, which a business builds from its own confirmed fraud and abuse.

A screening process uses watchlists like this:

1. The business collects customer and counterparty details.
2. It compares them with the watchlists, using matching that tolerates spelling variants.
3. Possible matches become alerts.
4. Analysts review the alerts and clear or escalate each one.

The quality of a watchlist program depends on a few things:

• Coverage, meaning which lists and which jurisdictions it includes.
• Refresh cadence, meaning how quickly new entries appear in the screening data.
• Match quality, meaning how well the system separates true matches from false alarms.

Watchlists sit next to terms that are easy to mix up:

• Sanctions screening is the process of checking names against sanctions lists, which are one type of watchlist.
• OFAC is the US Treasury office that publishes one of the most widely used sanctions lists.
• Negative list / blacklist is a list of details tied to past fraud, which a business keeps for fraud prevention instead of legal compliance.