Natalie Connor, spokeswoman of the anti-virus company, said that even visiting any of the named websites could expose a computer to infection and put the personal information into the hands of unwanted people.
The infected sites had on average 18,000 threats and 40% of the sites had more than 20,000 threats, while 75% of websites on the list were spreading malware for over six months.
Most websites in the list had adult content with unprintable names. Other sites include those on ice skating, deer hunting, catering and legal services.
Hackers can apparently obtain personal information using keystroke-logging software from both PCs and Mac computers.
The reps said that hackers are a force to reckon with as cyber crime is increasing rapidly.
She added: "The last thing we want to do is scare people, we want to educate them so they know how to protect themselves.
Netizens watch out on: