Legality of piggybacking
Laws regarding "unauthorized access of a computer network" exist in many legal codes, though the wording and meaning differ from one to the next. However, the interpretation of terms like "access" and "authorization" is not clear, and there is no general agreement on whether piggybacking (intentional access of an open Wi-Fi network without harmful intent) falls under this classification. Some jurisdictions prohibit it, some permit it, and others are not well-defined.
For example, a common but untested argument is that the 802.11 and DHCP protocols operate on behalf of the owner, implicitly requesting permission to access the network, which the wireless router then authorizes. (This would not apply if the user has other reason to know that their use is unauthorized, such as a written or unwritten notice.)
In addition to laws against unauthorized access on the user side, there are the issues of breach of contract with the Internet service provider on the network owner's side. Many terms of service prohibit bandwidth sharing with others, though others allow it. The Electronic Frontier Foundation maintains a list of ISPs that allow sharing of the Wi-Fi signal.
Under Australian Law, "unauthorized access, modification or impairment" of data held in a computer system is a federal offence under the Criminal Code Act 1995. The act refers specifically to data as opposed to network resources (connection).
In Canadian law, unauthorized access is addressed by Section 342.1 of the Criminal Code of Canada. According to Section 342.1, "Every one who, fraudulently and without colour of right" obtains "computer services" from an access point is subject to criminal charges. (See Criminal Code of Canada, RSC 1985, c. C-46, s. 342.1 (1) (a))
Section 326 may also be used to address unauthorized access of a computer network. '(1) Every one commits theft who fraudulently, maliciously, or without colour of right', '(b) uses any telecommunication facility or obtains any telecommunication service.'
In Toronto in 2003, a man was arrested with a Wi-Fi enabled laptop in his car, partially undressed. He was tapping into unprotected wireless networks to download child pornography. Ultimately, however, he was charged not for piggybacking, but for the pornography instead.
In Morrisburg, Ontario in 2006, a man was arrested under section 326 of the Criminal Code of Canada. Ultimately the arrest was poorly reported, there does not seem to be any information available with regards to conviction.
Under HK Laws. Chapter 200 Crimes Ordinance Section 161 Access to computer with criminal or dishonest intent:
(1) Any person who obtains access to a computer-
- (c) with a view to dishonest gain for himself or another; or
- (d) with a dishonest intent to cause loss to another,
- whether on the same occasion as he obtains such access or on any future occasion, commits an offence and is liable on conviction upon indictment to imprisonment for 5 years.
Unauthorized access to a protected system is illegal.
In November 2006, the 17 year old Garyl Tan Jia Luo, was arrested for tapping into his neighbour's wireless Internet connection. He faced up to three years' imprisonment and a fine under the Computer Misuse Act. On 19 December, Tan pleaded guilty to the charge, and on 16 January 2007 he became the first person in Singapore to be convicted of the offense. He was sentenced by the Community Court to 18 months' probation, half of which was to be served at a boys' home. For the remaining nine months, he had to stay indoors from 10:00 pm to 6:00 am. He was also sentenced to 80 hours of community service and banned from using the Internet for 18 months; his parents risked forfeiting a S$5,000 bond if he failed to abide by the ban. Tan was also given the option of enlisting early for National Service. If he did so, he would not have to serve whatever remained of his sentence.
On 4 January 2007, Lin Zhenghuang was charged for using his neighbour's unsecured wireless network to post a bomb hoax online. In July 2005, Lin had posted a message entitled "Breaking News – Toa Payoh Hit by Bomb Attacks" on a forum managed by HardwareZone. Alarmed by the message, a user reported it to the authorities through the Government of Singapore's eCitizen website. Lin faced an additional 60 charges for having used his notebook computer to repeatedly access the wireless networks of nine people in his neighborhood. Lin pleaded guilty to one charge under the Telecommunications Act and another nine under the Computer Misuse Act on 31 January. He apologised for his actions, claiming he had acted out of "stupidness" and not due to any "malicious or evil intent". On 7 February he was sentenced by District Judge Francis Tseng to three months' jail and a S$4,000 fine. The judge also set sentencing guidelines for future 'mooching' cases, stating that offenders would be liable to fines and not to imprisonment unless offences were "committed in order to facilitate the commission of or to avoid detection for some more serious offence", as it was in Lin's case.
(1) A person is guilty of an offence if—
- (a) he causes a computer to perform any function with intent to secure access to any program or data held in any computer;
- (b) the access he intends to secure is unauthorised; and
- (c) he knows at the time when he causes the computer to perform the function that is the case.
In London, 2005, Gregory Straszkiewicz was the first person to be convicted of a related crime, "dishonestly obtaining an electronics communication service" (under s.125 Communications Act 2003). Local residents complained that he was repeatedly trying to gain access to residential networks with a laptop from a car. There was no evidence that he had any other criminal intent. He was fined £500 and given a 12-month conditional discharge.
There are federal and state laws (in all 50 states) addressing the issue of unauthorized access to wireless networks. The laws vary widely between states. Some criminalize the mere unauthorized access of a network, while others require monetary damages for intentional breaching of security features. The majority of state laws do not specify what is meant by "unauthorized access". Regardless, enforcement is minimal in most states even where it is illegal, and detection is difficult in many cases.
Some portable devices, such as the Apple iPad and iPod touch, allow casual use of open Wi-Fi networks as a basic feature, and often identify the presence of specific access points within the vicinity for user geolocation.
In St. Petersburg, 2005, Benjamin Smith III was arrested and charged with "unauthorized access to a computer network", a third-degree felony in the state of Florida, after using a resident's wireless network from a car parked outside.
An Illinois man was arrested in January 2006 for piggybacking on a Wi-Fi network. David M. Kauchak was the first person to be charged with "remotely accessing another computer system" in Winnebago County. He had been accessing the Internet through a nonprofit agency's network from a car parked nearby and chatted with the police officer about it. He pleaded guilty and was sentenced to a fine of $250 and one year of court supervision.
In Sparta, Michigan, 2007, Sam Peterson was arrested for checking his email each day using a café's wireless Internet access from a car parked nearby. A police officer became suspicious, stating, "I had a feeling a law was being broken, but I didn't know exactly what". The man explained what he was doing to the officer when asked, as he did not know that the act was illegal. The officer found a law against "unauthorized use of computer access", leading to an arrest and charges that could result in a five year felony and $10,000 fine. The cafe owner was not aware of the law, either. "I didn't know it was really illegal, either. If he would have come in [to the coffee shop] it would have been fine." They did not press charges, but he was eventually sentenced to a $400 fine and 40 hours of community service. This case was featured on the Colbert Report. 
In 2007, Palmer, Alaska, 21-year old Brian Tanner was charged with "theft of services" and had his laptop confiscated after accessing a gaming website at night from the parking lot outside the Palmer Public Library, as he was allowed to do during the day. He had been asked to leave the parking lot the night before by police, which he had started using because they had asked him not to use residential connections in the past. He was not ultimately charged with theft, but could still be charged with trespassing or not obeying a police order. The library director said that Tanner had not broken any rules, and local citizens criticized police for their actions.
In 2003, the New Hampshire House Bill 495 was proposed, which would clarify that the duty to secure the wireless network lies with the network owner, instead of criminalizing the automatic access of open networks. It was passed by the New Hampshire House in March 2003, but was not signed into law. The current wording of the law provides some affirmative defenses for use of a network that is not explicitly authorized:
I. A person is guilty of the computer crime of unauthorized access to a computer or computer network when, knowing that the person is not authorized to do so, he or she knowingly accesses or causes to be accessed any computer or computer network without authorization. It shall be an affirmative defense to a prosecution for unauthorized access to a computer or computer network that:
- (a) The person reasonably believed that the owner of the computer or computer network, or a person empowered to license access thereto, had authorized him or her to access; or
- (b) The person reasonably believed that the owner of the computer or computer network, or a person empowered to license access thereto, would have authorized the person to access without payment of any consideration; or
- (c) The person reasonably could not have known that his or her access was unauthorized.
There are additional provisions in the NH law, Section 638:17 Computer Related Offenses, as found by searching NH RSA's in December 2009. They cover actual use of someone else's computer rather than simply 'access':
II. A person is guilty of the computer crime of theft of computer services when he or she knowingly accesses or causes to be accessed or otherwise uses or causes to be used a computer or computer network with the purpose of obtaining unauthorized computer services.
III. A person is guilty of the computer crime of interruption of computer services when the person, without authorization, knowingly or recklessly disrupts or degrades or causes the disruption or degradation of computer services or denies or causes the denial of computer services to an authorized user of a computer or computer network.
IV. A person is guilty of the computer crime of misuse of computer or computer network information when:
- (a) As a result of his or her accessing or causing to be accessed a computer or computer network, the person knowingly makes or causes to be made an unauthorized display, use, disclosure, or copy, in any form, of data residing in, communicated by, or produced by a computer or computer network; or
- (b) The person knowingly or recklessly and without authorization:
- (1) Alters, deletes, tampers with, damages, destroys, or takes data intended for use by a computer or computer network, whether residing within or external to a computer or computer network; or
- (2) Intercepts or adds to data residing within a computer or computer network; or
- (c) The person knowingly receives or retains data obtained in violation of subparagraph (a) or (b) of this paragraph; or
- (d) The person knowingly uses or discloses any data he or she knows or believes was obtained in violation of subparagraph (a) or (b) of this paragraph.
V. A person is guilty of the computer crime of destruction of computer equipment when he or she, without authorization, knowingly or recklessly tampers with, takes, transfers, conceals, alters, damages, or destroys any equipment used in a computer or computer network, or knowingly or recklessly causes any of the foregoing to occur.
VI. A person is guilty of the computer crime of computer contamination if such person knowingly introduces, or causes to be introduced, a computer contaminant into any computer, computer program, or computer network which results in a loss of property or computer services.
New York law is the most permissive. The statute against unauthorized access only applies when the network "is equipped or programmed with any device or coding system, a function of which is to prevent the unauthorized use of said computer or computer system". In other words, the use of a network would only be considered unauthorized and illegal if the network owner had enabled encryption or password protection and the user bypassed this protection, or when the owner has explicitly given notice that use of the network is prohibited, either orally or in writing. Westchester County passed a law, taking effect in October 2006, that requires any commercial business that stores, utilizes or otherwise maintains personal information electronically to take some minimum security measures (e.g., a firewall, SSID broadcasting disabled, or using a non-default SSID) in an effort to fight identity theft. Businesses that do not secure their networks in this way face a $500 fine. The law has been criticized as being ineffectual against actual identity thieves and punishing businesses like coffee houses for normal business practices.
- Bierlein, Matthew (2006). "Policing the Wireless World: Access Liability in the Open Wi-Fi Era" (PDF). Ohio State Law Journal 67 (5). Retrieved 2007-09-01.
- Shim, Richard (2003-11-28). "Wi-Fi arrest highlights security dangers". CNet News.com. Retrieved 2007-04-09.
- Geist, Michael (2006-03-08). "Ontario Police Arrest Man for War Driving". Retrieved 2010-03-01.
- Savy.uhf (2003-05-28). "Normativa Attuale sul Wireless". www.wifi-ita.com. Retrieved 2009-08-22. (Italian)
- "Singapore teen faces 3 years' jail for tapping into another's wireless Internet". International Herald Tribune. 2006-11-10. Retrieved 2007-08-31.
- Computer Misuse Act (Cap. 50A, 1998 Rev. Ed.)
- Chua Hian Hou (2006-12-20). "Wi-Fi Thief Pleads Guilty: 17-Year-Old Piggybacked on Neighbour's Network". The Straits Times.
- Chua Hian Hou (2007-01-17). "18-Month Net Ban, Community Service for PC Game Addict". The Straits Times.
- Ansley Ng (2007-01-17). "Illegal Wireless-Network User Sentenced to 18 Months' Probation". Today.
- Chua Hian Hou (2007-01-05). "21-Year-Old in Second Wi-Fi Case: The Charge: Using Neighbour's Network to Make Bomb Threat". The Straits Times.
- Chua Hian Hou (2007-02-01). "Online Bomb Hoax: Youth Pleads Guilty: Then-Poly Student Made the Posting Because he was 'Sleepless and Bored'". The Straits Times.
- Telecommunications Act (Cap. 323, 2000 Rev. Ed.)
- Chua Hian Hou (2007-02-08). "Bomb Hoax Youth Gets 3 Months' Jail, $4,000 Fine". The Straits Times.
- Leong Wee Keat (2007-02-08). "Bomb-Hoax Youth Gets 3 Months' Jail". Today..
- Unauthorised access to computer material - Computer Misuse Act 1990 (c. 18)
- Leyden, John (2005-07-25). "UK war driver fined £500". The Register. Retrieved 2007-09-02.
- "Wireless hijacking under scrutiny". BBC. 2005-07-28. Retrieved 2007-09-02.
- Griffiths, Peter (2007-04-18). "Two cautioned over wireless "piggy-backing"". Reuters. Retrieved 2007-04-18.
- "Two cautioned over wi-fi 'theft'". BBC. 2007-04-17. Retrieved 2007-09-02.
- Goodwin, Janna (2006-03-10). "Computer Hacking and Unauthorized Access Laws". Telecommunications & Information Technology. National Conference of State Legislatures. Retrieved 2007-04-09.
- Leary, Alex (2005-07-04). "Wi-Fi cloaks a new breed of intruder". St. Petersburg Times. Retrieved 2007-09-02.
- Bangeman, Eric (2005-07-07). "Florida man charged with felony for wardriving". Ars Technica. Retrieved 2007-09-02.
- Gonsalves, Antone (2006-03-24). "Illinois Man Fined For Piggybacking On Wi-Fi Service". TechWeb Technology News. TechWeb. Retrieved 2007-04-09.
- Green, Chris (2006-03-23). "Man fined $250 in first area case of Internet piracy". The Rockford Register Star. Retrieved 2007-09-03.
- Cheng, Jacqui (2007-05-22). "Michigan man arrested for using cafe's free WiFi from his car". Ars Technica. Retrieved 2007-09-02.
- "Nailed 'Em - Cyberrorists". The Colbert Report, Comedy Central. 2007-10-02. Retrieved 2011-05-02.
- Wellner, Andrew (2007-02-24). "Using free wireless at library described as theft". Anchorage Daily News. Archived from the original on 2007-04-03. Retrieved 2007-09-03.
- West, Jessamyn (2007-02-26). "Man using library wifi after hours gets laptop confiscated". librarian.net. Retrieved 2007-09-03.
- "Man Busted for After-hours Library Wireless Use Won't Be Charged with Theft". Library Journal. 2007-03-12. Retrieved 2007-09-03.
- McWilliams, Brian (2003-04-29). "Licensed to War Drive in N.H.". Wired. Retrieved 2007-09-03.
- Professor Orin Kerr (2003-04-30). "Would a New Hampshire bill really legalize war driving?". The Volokh Conspiracy. Retrieved 2007-09-01.
- Text of Section 638:17 Computer Related Offenses
- "Thus, open wireless access would only be actionable under this statute if the network operator has enabled encryption or password protection on the network, and users usurped this protection." - Bierlein
- Rasch, Mark (2004-05-03). "WiFi High Crimes". SecurityFocus. Retrieved 2007-09-18. "In fact, the companion New York State computer crime law, NY Penal Code Section 156 (6), requires that, for using a computer service without authorization, the prosecutor must prove that the owner has given actual notice to potential hackers or trespassers, either in writing or orally. In the absence of such notice in New York, the hacker can presume that he or she has authorization to proceed, under state law."
- "Wi-Fi Safety - Wireless Protection". Westchestergov.com. Archived from the original on 2007-09-05. Retrieved 2007-09-18.
- Spiegel, Dana (2005-11-08). "Westchester County Law Requiring Secured Wi-Fi Networks". Wireless Community. Retrieved 2007-09-18.
- Spiegel, Dana (2006-04-24). "Westchester County Law Requiring Secured Wi-Fi Networks (again)". Wireless Community. Retrieved 2007-09-18.