The Enemy Within The mischief is increasing, and it doesn't always come from the outside. Three quarters of information-security experts blamed disgruntled employees for computer attacks last year. 1 BarChart Countries with the Most Hacker Attacks, 2002 Worldwide, the number of hacker attacks jumped from about 31,000 in 2001 to more than 87,000 in 2002 United States 1 false 1 6.8 0.5 false 32434 3 false Value 32434 false false Brazil 1 false 1 1.53 1.15 false 7294 3 false Value 7294 false false Britain 1 false 1 1.17 1.8 false 5589 3 false Value 5589 false false Germany 1 false 1 1.1 2.5 false 5301 3 false Value 5301 false false Italy 1 false 1 0.77 3.2 false 3682 3 false Value 3682 false false