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Risks of offering free customer WiFi in Australia | Purple

By Richard Ellor
13 April 2014
5 min read
Risks of offering free customer WiFi in Australia | Purple
🇦🇺Australian Regulatory & Network Security AdvisorPrivacy Act 1988 • eSafety • PCI-DSS

Australian guest WiFi risk and compliance advisor

Evaluate legal exposure under the Privacy Act 1988, model peak device concurrency, assess EFTPOS payment isolation, and calculate bandwidth backhaul requirements for Australian commercial venues.

Venue classification
1,400 visitors
45 minutes
+25%
5 Mbps
Legal risk rating
92 / 100
Critical legal liability
Peak concurrent devices
19
Simultaneous active connections
Recommended backhaul
42 Mbps
Minimum WAN uplink required
Estimated access points
3 APs
High-density enterprise radios
Australian Compliance Assessment: Open unencrypted SSID (Zero splash / terms)

Open WiFi without authentication exposes Australian businesses to Privacy Act 1988 sanctions, copyright infringement notices, and unmonitored criminal activity on business IP addresses. Under the Privacy Legislation Amendment Act 2022, maximum civil penalties for repeated privacy interferences reach up to A$50,000,000. At peak operation, your venue supports approximately 19 concurrent devices, generating 818 GB of monthly data transit across 3 enterprise access points.

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It's a little-known fact outside of the land down under that WiFi is an Australian invention. The Australian Government's Commonwealth Scientific and Industrial Research Organisation (CSIRO) invented and patented wireless LAN technology in the 1990s.

Today, WiFi is nearly ubiquitous in Australia as households and businesses use the technology to allow maximum mobility and convenience. For retail businesses, providing free WiFi has become a common way of encouraging customers to stay a while longer, and, for example, buy an extra cup of coffee or two, or those few extra books. Yet many Australian businesses providing this free service have not considered some of the legal risks that free WiFi could create.

Regulation in Australia

Wireless internet use and access is relatively unregulated in Australia. There are no licensing requirements for being a free WiFi provider, although the Telecommunications Act, Spam Act and Privacy Act all deal with issues that could affect WiFi. That said, the way most people use the technology means they are unlikely to be affected by those laws any more than desktop internet access.

Businesses providing free WiFi are usually simply providing access to their internet connection, without collecting any data about the users. For those providers, there is minimal risk under Australian privacy laws, but as soon as an email address, name or potentially an IP address, is collected from the users of the free WiFi, the Privacy Act could kick in and create a new layer of compliance.

Potential risks

There is no complete list of risks for free WiFi providers. Like many things, the risks are as broad and numerous as imagination allows, and many are there as theoretical risks, but with low probability and/or little likelihood of real damage. However, there are some risks that are easy to think about and deal with as a starting point.

The first major risk is use of the free WiFi network for illegal activity. Copyright infringement is a common and obvious risk, but it is likely that Australian law will hold the individual user liable, rather than the provider of the free WiFi. A recent case in the Australian High Court (the equivalent of the US Supreme Court) has made it clear (for now) that internet service providers are not responsible for any illegal use of the network by their users. Nonetheless, forcing users to agree to an acceptable use policy is a good way to mitigate this risk if the law were to change in future.

Illegal activity could also extend to even more sinister behaviour, such as terrorism, child pornography, drug trafficking and anything else where anonymity is useful, and a public internet source can cover the tracks of a criminal. While it is unlikely that the provider of the free WiFi would be held liable for a criminal offence of a user, the interruption to the business of a criminal investigation may be enough of a problem to consider using internet filters or other technology to reduce the risk.

Acceptable use policies

Acceptable use policies are one way to minimise legal risks, creating a contractual relationship between the free WiFi provider and the user. By requiring the user to agree to the acceptable use policy before accessing the free WiFi network, the business providing the WiFi creates a contractual relationship which can contain certain promises, warranties and indemnities to protect the business if the user does anything wrong.

For businesses that collect information about the users, such as an email address, the acceptable use policy should also include a privacy policy, ensuring compliance with the Privacy Act, and disclosing the information collected, and how it will be used or disclosed.

Internet filtering

While the previous Australian Government proposed a nationwide internet filter, the current Minister for Communications, Malcolm Turnbull, has rejected such a policy. In the absence of a government-mandated internet filter, businesses are able to use their own internet filters to control access to undesirable websites. Basic filtering software is available for free online, but businesses may wish to invest in more advanced technology to ensure proper protection of their business from illegal activity, while allowing customers to still use their free WiFi access without being blocked from every website they want to use. Like most things, you get what you pay for.

Squire Sanders is one of the world's strongest integrated legal practices with more than 1,300 lawyers in 39 offices across 19 countries. The Intellectual Property and Technology group is well situated to answer your questions regarding these and related legal issues in Australia, the US and Europe.

This article is made available by Squire Sanders only to provide general commentary of the law as it stands on 28 March 2014, not to provide specific legal advice nor to warrant compliance with the law by Purple WiFi Limited. There is no solicitor-client relationship between the reader and Squire Sanders. This article should not be used as a substitute for competent, up-to-date legal advice from a qualified solicitor.

© Squire Sanders March 2014. All rights reserved.

For further information on this topic, please contact:

Richard Pascoe

Of Counsel

Intellectual Property and Technology

T - +61 2 8248 7803

E - richard.pascoe@squiresanders.com

Frequently asked questions

What are the legal risks of offering unencrypted customer WiFi in Australia?

Providing unencrypted open WiFi exposes Australian businesses to Privacy Act 1988 liabilities, cyber interception, and potential secondary copyright infringement claims under the Copyright Act 1968. Without user authentication or session logging, venue operators cannot identify malicious actors operating on their public IP address. In addition, unencrypted radio transmissions leave guest traffic vulnerable to packet sniffing and evil-twin rogue access points.

Does the Australian Privacy Act 1988 apply to small venue WiFi networks?

The Privacy Act 1988 applies to Australian Privacy Principle (APP) entities, which generally include commercial organizations with an annual turnover exceeding A$3 million. However, smaller businesses must also comply if they provide health services, trade in personal information, or operate under contractual obligations with larger enterprise partners. Under the Privacy Legislation Amendment Act 2022, civil penalties for serious or repeated privacy interferences reach up to A$50 million.

What notices must an Australian venue captive portal display to comply with APP 5?

Under Australian Privacy Principle 5 (APP 5), a captive portal collecting user details (such as names, email addresses, or mobile numbers) must display an explicit collection notice before collecting data. This notice must identify the operating entity, state the purpose of collection, outline consequences of non-disclosure, explain how users can access or correct personal information, and detail any third-party data sharing or overseas disclosures.

Why must guest WiFi traffic be segmented from EFTPOS and POS payment terminals?

PCI-DSS Requirement 1.3 mandates strict firewall and network segmentation between the cardholder data environment (CDE) and untrusted networks. If guest WiFi and EFTPOS card terminals share an unsegmented flat subnet, any compromised customer device or malicious visitor can scan, intercept, or tamper with payment traffic. Deploying isolated VLANs with strict access control lists ensures guest packets never reach transaction systems.

What is Opportunistic Wireless Encryption (OWE) and how does it protect open venue WiFi?

Opportunistic Wireless Encryption (OWE), defined under IEEE 802.11ow and WiFi Alliance Enhanced Open, provides individualized cryptographic encryption over the wireless medium without requiring a shared password. OWE performs a Diffie-Hellman key exchange during association, securing wireless frames against passive eavesdropping while maintaining a frictionless, password-free onboarding experience for guests.

Are Australian venue owners liable for illegal downloads or copyright infringement on guest WiFi?

Under the Copyright Act 1968, commercial venues face secondary liability risks if they provide facilities used for copyright infringement without taking reasonable preventative steps. While carriage service providers benefit from statutory safe harbour protections, private venue operators must demonstrate technical safeguards. Best practices include explicit acceptable use policies, DNS content filtering, blocking BitTorrent ports, and maintaining temporary session audit logs.

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