The thorny issue of vaccine passports

Thursday, 02 September, 2021

The thorny issue of vaccine passports

Australia looks set to follow the UK and many European countries, where the introduction of vaccine passports has enabled vaccinated individuals to travel and enjoy a greater freedom of movement including entry into restaurants, bars and other entertainment venues. This is a complex topic, incorporating the full gamut of issues including public health and safety, privacy, human rights and cybersecurity. UNSW investigates from a legal and software engineering perspective.

Should the federal government mandate vaccine passports?

A mandate is already being set to deliver negative consequences for non-vaccinated individuals. This will see businesses decide whether to deny entry to those that cannot prove COVID-19 vaccination. In addition, some businesses — including SPC and Qantas at this stage — have already mandated that vaccination is a compulsory condition of employment.

According to Professor Justine Nolan, Director of the Australian Human Rights Institute, these types of mandates are not new.

“We’ve long had vaccinations in certain sectors such as aged care and childcare where flu vaccination is required. We’ve seen mandates nationally around aged care in New South Wales for quarantine workers, for construction workers and more recently, healthcare workers,” Prof Nolan said.

In a discussion around vaccine passports, Scientia Professor George Williams AO believes it comes down to context and reasonableness.

“My view is that the federal government should lay down some general standards in this area. I think it’s unrealistic to expect every business to make their own separate judgement in light of the basic medical advice, and also their own circumstances and to get it right. Some will be very risk averse. And they perhaps will mandate vaccination when they shouldn’t.

“Others won’t be risk averse enough and actually won’t go down a path. And as a result, we may expose the community to a greater risk. It’s a classic case of needing clear government standards,” Prof Williams said.

Are vaccine passports an infringement on human rights?

In times of crisis, it is possible to limit human rights to protect goals such as public health and safety, according to Prof Nolan.

“However, when rights are restricted, the onus is on the government to demonstrably justify every restriction including showing there are no less restrictive means to achieve a legitimate purpose. But in these circumstances, it is possible to restrict entry to specific venues based on public health.

As Australia does not currently have a National Human Rights Act, restrictions on rights cannot be readily appealed.

“The government has provided itself with broad powers under the Biosecurity Act of 2015 to deal with COVID-19 — which is classified as a ‘human biosecurity emergency’,” Prof Nolan said.

Once this is activated, the Health Minister can make any determination and can override any other law in the country, including rules by Parliament.

“This gives the Federal Health Minister broad powers to determine any emergency requirements or give any direction to any person where the Federal Health Minister is satisfied the direction is necessary to prevent or control the spread of COVID-19 and this could include approving vaccine passports be required for certain activities,” Prof Nolan said.

However, having a National Human Rights Act is not the perfect solution.

“It wouldn’t be perfect, but I think it would be a really useful tool in helping us better answer some of these questions such as, what does safety mean? What do we do in the workplace? How do we deal with conscientious objectors? What do we do about people who can’t have a vaccination? And how do we weigh up the different interests of those people? And in the absence of international human rights mechanisms having any real bite in Australia, I think it’s a problem that we don’t have a domestic set of values that help us ensure that our politicians make the right decisions on our behalf,” Prof Williams said.

Are vaccine passports a breach of privacy?

Currently, the government’s recommended way to prove a person’s vaccination is through a digital certificate accessed through the Medicare portal. But once someone’s vaccination credentials are digitalised, what does that means for their privacy?

UNSW data privacy expert Dr Helen Paik from UNSW Computer Science and Engineering said the lack of measures in place to secure the privacy of the certificate holder means they could be easily forged.

“At the moment, the certificates are essentially glorified PDF documents,” she said.

“We’ve already seen instances where counterfeited certificates with another person’s name and details can be easily made due to security flaws in the system.

“Beyond that, the certificates include information such as your full name, date of birth and even which vaccine you had. We are unnecessarily disclosing private details about ourselves to individuals and businesses when all they really need to verify is proof of vaccination — and nothing more.”

How can the government protect people’s privacy?

Dr Paik said verifying a person’s digital signature through QR codes, like the ones used in the European Union, could be one way to help protect their privacy. The design means users only need to produce the QR code on their certificate without revealing any other personal details.

“For instance, let’s say you need to prove your vaccination to board a domestic flight. The airline scans the QR code on your vaccination certificate and this request is sent to the governing authority who verifies the information requested and sends it back to the verifier,” she said.

“This is one way we can reduce the potential risk of scammers who could try to capture your personal details for illegal purposes.

“Another alternative is to potentially use blockchain, a highly secure decentralised database service, making it very difficult to hack — and forge.

“Whatever security systems we use, it’s important to minimise our exposure from the start. In a digitalised world, once our information is out there, you can’t get it back,” Dr Paik said.

Can vaccine passports be discriminatory?

“We first need to assess what is reasonable. Providing people with incentives to get vaccinated by allowing them to access travel or attend a concert can be justified based on public health but this needs to be assessed in the broader context, ie, does everyone first have access to a vaccine. Without such access the restriction may not be reasonable,” Prof Nolan said.

However, those who are not tech-savvy and cannot speak fluent English might be at a disadvantage. Earlier this month, the ABC reported that the government’s own translated vaccination information was nearly eight weeks out of date.

“Communication is a key aspect in ensuring widespread take-up of vaccines. To date there have been multiple stumbles in communicating who, how and where people can get vaccinated. Efforts in Sydney’s south-west and west to do broader outreach, involve local community leaders and involve local pharmacies in vaccine distribution are critical to broader uptake, but this issue applies across Australia. There needs to be clearer and more effective message about the availability, safety and need for increased vaccination uptake,” Prof Nolan said.

As a result of poor communication, vulnerable people such as refugees and asylum seekers run the risk of being overlooked. Australia, unlike some other countries, hasn’t included access to vaccines for groups such as refugees or international students or foreign workers.

“This is an important issue and all those present in Australia should be provided access to a vaccine regardless of immigration status and there should be an amnesty on visa checks to encourage all people to come forward to get the vaccine. This applies not only to those seeking asylum but also migrant workers who may have overstayed their visa,” Prof Nolan said.

Can states mandate that anyone coming from NSW have at least one dose of a vaccine? Is this legal?

“In theory, the federal government can overturn any of the border closures if it wants to do so using the Biosecurity Act,” said Prof Williams in a discussion about vaccine passports to freedom.

“It could impose a new national set of standards around hotspots and the like. And essentially, it could dismantle the state-based approach and the border-based approach for a national approach that ignores borders and favours of community and health-based advice. But of course, there isn’t the will to do that at the federal level, because the political consequences would be very large.

“In terms of the legalities of it — Clive Palmer had to go with this last year in the High Court. He argued that the WA border closure was unconstitutional, evidence was taken, and the High Court rejected his challenge. And it did so because it found there was enough evidence to say this was serving a public health need. And that trumped the normal idea of our borders being open and people being absolutely free to travel around the country.

“It’s the pragmatic and political reality, that when you deal with a crisis of this kind, it’s the states that pull most of the levers politically and operationally… And that’s why there are inconsistencies because the political opportunities differ across the country,” Prof Williams said.

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