In more politically correct words, many wealthy people who "value their privacy":
"A lot of wealthy Colombians got burnt," said one leading Bogota businessman. But to date, no Colombian investor has acknowledged losing money in the Madoff affair. Colombia has a history of kidnappings and businessmen are generally wary of talking about their wealth in the media.
According to the article, many in Brazil, including "members of Brazil's large and wealthy Jewish enclave", invested in Madoff funds via private accounts banking services of Safra and UBS.
Madoff has targeted and screwed "his people" all over the world.
Being that many Latin American Jews have second homes in South Florida and/or New York, it should not be a surprise that they got taken in by a certain Landsman who split his time between both areas.