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"A draft government memo explaining how the NHS contact-tracing app could stem the spread of the coronavirus said ministers might be given the ability to order "de-anonymisation" to identify people from their smartphones, the Guardian can reveal. The health secretary, Matt Hancock, announced on Sunday that the UK planned to introduce an app that would enable people who developed Covid-19 symptoms to "anonymously" alert other users to whom they had been in close proximity. "All data will be handled according to the highest ethical and security standards, and would only be used for NHS care and research," he said."

"The app, called Care19, and produced by a company called ProudCrowd that also makes a location-based social networking app for North Dakota State sports fans, generates a random ID number for each person who uses it. Then, it can "anonymously cache the individual's locations throughout the day," storing information about where people spent at least 10 minutes at a time, according to the state website. If users test positive for the coronavirus, they can provide that information to the North Dakota Department of Health for contact-tracing purposes so that other people who spent time near virus patients can potentially be notified."

"Launched in April, the smartphone app Smittestopp ("infection stop") was set up to collect movement data to help authorities trace the spread of Covid-19, and inform users if they had been exposed to someone carrying the virus. On Friday, the data agency Datatilsynet issued a warning that it would stop the Norwegian Institute of Public Health from handling data collected via Smittestopp."

"The Singapore government says the wearable device it is developing for COVID-19 contact tracing will not have GPS, internet, or cellular connectivity, so data it collects can only be extracted when it is physically handed over to a health official. These details are being offered up as the government looks to ease concerns about data privacy and drive the adoption of digital tools that can help speed up contact tracing. "

""To my knowledge, this is the first instance in which a European DPA has imposed a ban on a contact-tracing app already in use in light of national developments regarding contagion levels," he told us. "It is thus possible that other European DPAs will impose similar bans in the future and demand that contact-tracing apps be changed as soon as contagion levels substantially decrease also in other parts of Europe. Norway has currently one of the lowest contagion levels in Europe.""

"As more governments turn to contact tracing apps to aid in their efforts to contain the coronavirus outbreak, cybersecurity experts are warning this may spark renewed interest in Bluetooth attacks. They urge developers to ensure such apps are regularly tested for vulnerabilities and release patches swiftly to plug potential holes, while governments should provide assurance that their databases are secure and the data collected will not be used for purposes other than as originally intended. "

"But the default settings of the service are configured in the expectation of trust between participants, meaning trolls can wreak havoc. Some zoombombers have used the screensharing feature to broadcast pornography and violent imagery. "

"Singapore was one of the first nations to adopt a Bluetooth-powered contact-tracing app, fueling plenty of global debate about the best way to deploy the technology. SafeEntry will advance that debate as its introduction surely suggests that contact-tracing apps have their limitations."

"There are clear indications that the UK government is now actively considering use of the technology as a way of easing the lockdown. If this signals an outbreak in Whitehall of tech "solutionism" - the belief that for every problem there is a technological answer - then we should be concerned. Tech solutions often do as much harm as good, for example, by increasing social exclusion, lacking accountability and failing to make real inroads into the problem they are supposedly addressing."

"As the number of coronavirus cases in South Korea exceeded 6,000 this week, there was a rise, too, in complaints about information overload in the form of emergency virus text alerts that have included embarrassing revelations about infected people's private lives."