Security can be defined as keeping anyone from doing things you do not want them to do with, on, or from your data, computers, or peripheral devices. At risk are stored information, the accuracy and value of information, access to internal and external services, and the organization's privacy. Security risks can come from hackers, criminal intruders, corporate raiders, insiders, contractors, and disgruntled employees. Hackers are typically young hobbyists. "Script Kiddiez" copy well-known attacks from the Internet and run them. More sophisticated hackers understand the underlying protocols and their weaknesses. Criminal intruders may be after access to credit card numbers and checking accounts. Corporate raiders may be after financial information, business plans, and intellectual property.