The 21st century is called the technological era where information storage takes place on the website. Due to the diversity there is an interest about the acquisition and use of confidential information in malicious intent. Offences in cyberspace are new in modern society and their discovery and observation is independent research question. Illegal access to automated data processing systems is creation of financial loss and persons legitimate interests violation with the material injury. In article are analyzed signs Latvian Criminal law of the article 241st, 243rd and the criteria for the qualification of the criminal offence of composition