Smartmatic was recently investigated for election fraud committed in Argentina:

Ahead of Argentine Election, Voting Software Company Faces Scrutiny

Voice of America

26 Oct 2019, 22:05 GMT+10

MADRID - A supplier of election technology whose software was used in highly suspect Venezuelan balloting, faces a fresh test of its products during a decisive election this Sunday in Argentina.

The company, Smartmatic, made headlines in 2017 by pulling out of Venezuela when the United States, the European Union and the Organization of American States accused the country's leftist government of massive vote tampering…

https://www.trinidadnews.net/news/262866863/ahead-of-argentine-election-voting-software-company-faces-scrutiny

https://www.tiempoar.com.ar/nota/smartmatic-sera-investigada-penalmente-por-presunto-fraude-contra-el-estado

https://www.pagina12.com.ar/224102-smartmatic-bajo-investigacion-penal