Fintech Startup Combines AI and Human Insight to Combat Fraud.

San Francisco-based startup SentiLink, which uses AI and human insight to fight fraud, has grown into a fast-growing fintech startup with over 300 customers, including seven of the US's 15 biggest banks and six of its 10 largest credit unions. SentiLink has expanded beyond synthetic fraud to old-fashioned identity theft and first-party fraud, and raised $70m in July 2021 at a $430m valuation. However, the company has only a tiny sliver of the fraud-prevention market, which totals $15bn a year, and faces competition from larger firms such as Experian and Lexis-Nexis.