	Introduction

The Computer Fraud and Abuse Act (CFAA), 18 U.S.C. It shields them from trespassing, threats, damage, espionage, and from being corruptly used as instruments of fraud. It is not a comprehensive provision; instead it fills cracks and gaps in the protection afforded by other state and federal criminal laws. This is a brief description of §1030 and its federal statutory companions. In their present form, the seven paragraphs of subsection 1030(a) outlaw
computer trespassing in a government computer, 18 U.S.C. 1030(a)(3); computer trespassing resulting in exposure to certain governmental, credit, financial, or computer-housed information, 18 U.S.C. 1030(a)(2); damaging a government computer, a bank computer, or a computer used in, or affecting, interstate or foreign commerce, 18 U.S.C. 1030(a)(5); committing fraud an integral part of which involves unauthorized access to a government computer, a bank computer, or a computer used in, or affecting, interstate or foreign commerce, 18 U.S.C. 1030(a)(4); threatening to damage a government computer, a bank computer, or a computer used in, or affecting, interstate or foreign commerce, 18 U.S.C. 1030(a)(7); trafficking in passwords for a government computer, or when the trafficking affects interstate or foreign commerce, 18 U.S.C. 1030(a)(6); and accessing a computer to commit espionage, 18 U.S.C. 1030(a)(1). Subsection 1030(b) makes it a crime to attempt or conspire to commit any of these offenses. Subsection 1030(c) catalogs the penalties for committing them, penalties that range from imprisonment for not more than a year for simple cyberspace trespassing to imprisonment for not more than 20 years for a second espionage-related conviction and to life imprisonment for death-result offenses. Subsection 1030(d) preserves the investigative authority of the Secret Service. Subsection 1030(e) supplies common definitions. Subsection 1030(f) disclaims any application to otherwise permissible law enforcement activities. Subsection 1030(g) creates a civil cause of action for victims of these crimes. The Identity Theft Enforcement and Restitution Act of 2008 inserted separate criminal and civil forfeiture subsections within §1030. Causing Computer Damage (18 U.S.C. 1030(g). (e) As used in this section—
(1) the term "computer" means an electronic, magnetic, optical, electrochemical, or other high speed data processing device performing logical, arithmetic, or storage functions, and includes any data storage facility or communications facility directly related to or operating in conjunction with such device, but such term does not include an automated typewriter or typesetter, a portable hand held calculator, or other similar device;
(2) the term "protected computer" means a computer—
(A) exclusively for the use of a financial institution or the United States Government, or, in the case of a computer not exclusively for such use, used by or for a financial institution or the United States Government and the conduct constituting the offense affects that use by or for the financial institution or the Government; or
(B) which is used in or affecting interstate or foreign commerce or communication, including a computer located outside the United States that is used in a manner that affects interstate or foreign commerce or communication of the United States;
(3) the term "State" includes the District of Columbia, the Commonwealth of Puerto Rico, and any other commonwealth, possession or territory of the United States;
(4) the term "financial institution" means—
(A) an institution, with deposits insured by the Federal Deposit Insurance Corporation;
(B) the Federal Reserve or a member of the Federal Reserve including any Federal Reserve Bank;
(C) a credit union with accounts insured by the National Credit Union Administration;
(D) a member of the Federal home loan bank system and any home loan bank;
(E) any institution of the Farm Credit System under the Farm Credit Act of 1971;
(F) a broker-dealer registered with the Securities and Exchange Commission pursuant to section 15 of the Securities Exchange Act of 1934;
(G) the Securities Investor Protection Corporation;
(H) a branch or agency of a foreign bank (as such terms are defined in paragraphs (1) and (3) of section 1(b) of the International Banking Act of 1978); and
(I) an organization operating under section 25 or section 25(a) of the Federal Reserve Act;
(5) the term "financial record" means information derived from any record held by a financial institution pertaining to a customer's relationship with the financial institution;
(6) the term "exceeds authorized access" means to access a computer with authorization and to use such access to obtain or alter information in the computer that the accesser is not entitled so to obtain or alter;
(7) the term "department of the United States" means the legislative or judicial branch of the Government or one of the executive departments enumerated in section 101 of title 5; 
(8) the term "damage" means any impairment to the integrity or availability of data, a program, a system, or information;
(9) the term "government entity" includes the Government of the United States, any State or political subdivision of the United States, any foreign country, and any state, province, municipality, or other political subdivision of a foreign country;
(10) the term "conviction" shall include a conviction under the law of any State for a crime punishable by imprisonment for more than 1 year, an element of which is unauthorized access, or exceeding authorized access, to a computer;
(11) the term "loss" means any reasonable cost to any victim, including the cost of responding to an offense, conducting a damage assessment, and restoring the data, program, system, or information to its condition prior to the offense, and any revenue lost, cost incurred, or other consequential damages incurred because of interruption of service; and
(12) the term "person" means any individual, firm, corporation, educational institution, financial institution, governmental entity, or legal or other entity.
The Computer Fraud and Abuse Act (CFAA), 18 U.S.C. 1030, outlaws conduct that victimizes computer systems. It is a cyber security law. It protects federal computers, bank computers, and computers connected to the Internet. It shields them from trespassing, threats, damage, espionage, and from being corruptly used as instruments of fraud. It is not a comprehensive provision, but instead it fills cracks and gaps in the protection afforded by other federal criminal laws. This is a brief sketch of CFAA and some of its federal statutory companions, including the amendments found in the Identity Theft Enforcement and Restitution Act, P.L. 110-326, 122 Stat. 3560 (2008).
In their present form, the seven paragraphs of subsection 1030(a) outlaw
computer trespassing (e.g., hacking) in a government computer, 18 U.S.C. 1030(a)(3); computer trespassing (e.g., hacking) resulting in exposure to certain governmental, credit, financial, or computer-housed information, 18 U.S.C. 1030(a)(2); damaging a government computer, a bank computer, or a computer used in, or affecting, interstate or foreign commerce (e.g., a worm, computer virus, Trojan horse, time bomb, a denial of service attack, and other forms of cyber attack, cyber crime, or cyber terrorism), 18 U.S.C. 1030(a)(5); committing fraud an integral part of which involves unauthorized access to a government computer, a bank computer, or a computer used in, or affecting, interstate or foreign commerce, 18 U.S.C. 1030(a)(4); threatening to damage a government computer, a bank computer, or a computer used in, or affecting, interstate or foreign commerce, 18 U.S.C. 1030(a)(7); trafficking in passwords for a government computer, or when the trafficking affects interstate or foreign commerce, 18 U.S.C. 1030(a)(6); and accessing a computer to commit espionage, 18 U.S.C. 1030(a)(1).
Subsection 1030(b) makes it a crime to attempt or conspire to commit any of these offenses. Subsection 1030(c) catalogs the penalties for committing them, penalties that range from imprisonment for not more than a year for simple cyberspace trespassing to a maximum of life imprisonment when death results from intentional computer damage. Subsection 1030(d) preserves the investigative authority of the Secret Service. Subsection 1030(e) supplies common definitions. Subsection 1030(f) disclaims any application to otherwise permissible law enforcement activities. Subsection 1030(g) creates a civil cause of action for victims of these crimes. Subsections 1030(i) and (j) authorize forfeiture of tainted property.
This report is available in abbreviated form—without the footnotes, citations, quotations, or appendixes found in this report—under the title CRS Report RS20830, Cybercrime: A Sketch of 18 U.S.C. 1030 and Related Federal Criminal Laws, by [author name scrubbed].