720 ILCS 5/17-55
For the purposes of this subdivision 30 :
In addition to its meaning as defined in Section 15-1 of this Code, "property" means: (1) electronic impulses; (2) electronically produced data; (3) confidential, copyrighted, or proprietary information; (4) private identification codes or numbers which permit access to a computer by authorized computer users or generate billings to consumers for purchase of goods and services, including but not limited to credit card transactions and telecommunications services or permit electronic fund transfers; (5) software or programs in either machine or human readable form; or (6) any other tangible or intangible item relating to a computer or any part thereof.
"Access" means to use, instruct, communicate with, store data in, retrieve or intercept data from, or otherwise utilize any services of, a computer, a network, or data.
"Services" includes but is not limited to computer time, data manipulation, or storage functions.
"Vital services or operations" means those services or operations required to provide, operate, maintain, and repair network cabling, transmission, distribution, or computer facilities necessary to ensure or protect the public health, safety, or welfare. Those services or operations include, but are not limited to, services provided by medical personnel or institutions, fire departments, emergency services agencies, national defense contractors, armed forces or militia personnel, private and public utility companies, or law enforcement agencies.
720 ILCS 5/17-55