"With fast growth comes fast fraud," Frank McKenna, a longtime fraud expert who works with banks, lenders, and fintechs, told Insider.
Cash App only requires a zip code, debit-card number, and either an email or phone number to create an account.
Cash App's alleged fraud problem could also be the result of its large, active customer base, which numbers some 44 million, according to the company's 2022 annual report.
The fact that Cash App offers peer-to-peer payments exacerbates the fraud issue, according to McKenna, the chief fraud strategist at Point Predictive, an anti-fraud software company.
Digital-only bank Chime has had its own issues with fraud, Jason Mikula, a fintech analyst and consultant, told Insider.