More corporate executives are more worried about data security and terrorism than anything else, according to a new study. Sixty-one percent of executives report being most concerned about information systems being compromised, and another 55% worry about terrorism, according to a Harris Interactive poll that was conducted in September. Thirty-two percent of those polled called environmental mishaps a top concern, while 21% said they’re highly worried about product recalls and 19% are highly worried about workforce violence.