Up to 1,500 businesses affected by ransomware attack, U.S. firm's CEO says

Staff enter the headquarters of information technology firm Kaseya in Miami, Florida, U.S., in an undated still image from video. Kaseya/Handout via REUTERS

WASHINGTON (Reuters) -Between 800 and 1,500 businesses around the world have been affected by a ransomware attack centered on U.S. information technology firm Kaseya, its chief executive said on Monday.

Fred Voccola, the Florida-based company's CEO, said in an interview that it was hard to estimate the precise impact of Friday's attack because those hit were mainly customers of Kaseya's customers.