South Korea gives out detailed information about patients' whereabouts.
South Korea has gone a step further than other countries, tracking individuals' phones and creating a publicly available map to allow other citizens to check whether they may have crossed paths with any coronavirus patients.
The tracking data that goes into the map isn't limited to mobile phone data, credit card records and even face-to-face interviews with patients are being used to build a retroactive map of where they've been.
Not only is the map there for citizens to check, but the South Korean government is using it to proactively send regional text messages warning people they may have come into contact with someone carrying the virus.
The location given can be extremely specific, the Washington Post reported a text went out that said an infected person had been at the "Magic Coin Karaoke in Jayang-dong at midnight on Feb. 20."
Some texts give out more personal information however. A text reported by The Guardian read: "A woman in her 60s has just tested positive. Click on the link for the places she visited before she was hospitalised."
The director of the Korea Centers for Disease Control and Prevention, Jeong Eun-kyeong, acknowledged that the site infringes on civil liberties, saying: "It is true that public interests tend to be emphasized more than human rights of individuals when dealing with diseases that can infect others."
The map is already interfering with civil liberties, as a South Korean woman told the Washington Post that she had stopped attending a bar popular with lesbians for fear of being outed. "If I unknowingly contract the virus... that record will be released to the whole country," she said.
The system is also throwing up other unexpected challenges. The Guardian reported that one man claiming to be infected threatened various restaurants saying he would visit and hurt their custom unless they gave him money to stay away.
Iran asked citizens to download an invasive app
Vice reported that Iran's government endorsed a coronavirus diagnosis app that collected users' real-time location data.
On March 3, a message went out to millions of Iranian citizens telling them to install the app, called AC19, before going to a hospital or health center.
The app claimed to be able to diagnose the user with coronavirus by asking a series of yes or no questions. The app has since been removed from the Google Play store.
"The goal is to stop people from running around and spreading the infection," said Jyan Hong-wei, head of Taiwan's Department of Cyber Security. Jyan added that local authorities and police should be able to respond to anyone who triggers an alert within 15 minutes.
Austria is using anonymized data to map people's movements
On March 17 Austria's biggest telecoms network operator Telekom Austria AG announced it was sharing anonymized location data with the government.
The technology being used was developed by a spin-off startup out of the University of Graz, and Telekom Austria said it is usually used to measure footfall in popular tourist sites.
Woodhams told Business Insider that while collecting aggregated data sets is less invasive than other measures, how that data could be used in future should still be cause for concern.
"Much of the data may remain at risk from re-identification, and it still provides governments with the ability to track the movement of large groups of its citizens," said Woodhams.
Belgium is using anonymized data from telcos
The Belgian government gave the go-ahead on March 11 to start using anonymized data from local telecom companies.
Like other European democracies, the UK doesn't seem to be exploring the more invasive method of contact tracing. However, it is considering using aggregated data to track the wider pattern of people's movements.