The use of monitoring technology, however, may evoke bitter memories of massive surveillance by totalitarian authorities in much of the continent. The European Union has in recent years led the way globally to protect people's digital privacy, introducing strict laws for tech companies and web sites that collect personal information. Academics and civil liberties activists are now pushing for greater personal data protection in the new apps as well.
Here’s a look at the issues. WHY AN APP? European authorities, under pressure to ease lockdown restrictions in place for months in some countries, want to make sure infections don’t rise once confinements end. One method is to trace who infected people come into contact with and inform them of potential exposure so they can self-isolate. Traditional methods involving in-person interviews of patients are time consuming and labor intensive, so countries want an automated solution in the form of smartphone contact tracing apps. But there are fears that new tech tracking tools are a gateway to expanded surveillance.
EUROPEAN STANDARDS Intrusive digital tools employed by Asian governments that successfully contained their virus outbreaks won’t withstand scrutiny in Europe. Residents of the EU cherish their privacy rights so compulsory apps, like South Korea’s, which alerts authorities if users leave their home, or location tracking wristbands, like those used by Hong Kong, just won’t fly.
The contact-tracing solution gaining the most attention involves using low energy Bluetooth signals on mobile phones to anonymously track users who come into extended contact with each other. Officials in western democracies say the apps must be voluntary.
RIVAL DESIGNS The battle in Europe has centered on competing systems for Bluetooth apps. One German-led project, Pan-European Privacy-Preserving Proximity Tracing, or PEPP-PT, which received early backing from 130 researchers, involves data uploaded to a central server. However, some academics grew concerned about the project's risks and threw their support behind a competing Swiss-led project, Decentralized Privacy-Preserving Proximity Tracing, or DP3T.
Privacy advocates support a decentralized system because anonymous data is kept only on devices. Some governments are backing the centralized model because it could provide more data to aid decisionmaking, but nearly 600 scientists from more than two dozen countries have signed an open letter warning this could, “via mission creep, result in systems which would allow unprecedented surveillance of society at large.”
Apple and Google waded into the fray by backing the decentralized approach as they unveiled a joint effort to develop virus-fighting digital tools. The tech giants are releasing a software interface so public health agencies can integrate their apps with iPhone and Android operating systems, and plan to release their own apps later.
The EU’s executive Commission warned that a fragmented approach to tracing apps hurt the fight against the virus and called for coordination as it unveiled a digital “toolbox” for member countries to build their apps with.
BEYOND BORDERS The approach Europe chooses will have wider implications beyond the practical level of developing tracing apps that work across borders, including the many found in the EU. “How we do this, what safeguards we put in, what fundamental rights we look very carefully at,” will influence other places, said Michael Veale, a lecture in digital rights at University College London who’s working on the DP3T project. “Countries do look to Europe and campaigners look to Europe,” and will expect the continent to take an approach that preserves privacy, he said.
COUNTRY BY COUNTRY European countries have started embracing the decentralized approach, including Austria, Estonia, Switzerland, and Ireland. Germany and Italy are also adopting it, changing tack after initially planning to use the centralized model.
But there are notable exceptions, raising the risk different apps won't be able to talk to each other when users cross Europe's borders. EU member France wants its own centralized system but is in a standoff with Apple over a technical hurdle that prevents its system from being used with iOS. The government's digital minister wants it ready for testing in “real conditions" by May 11 but a legislative debate on the app was delayed after scientists and researchers warned of surveillance risks.
Some non EU-members are going their own way. Norway rolled out one of the earliest - and most invasive - apps, Smittestopp, which uses both GPS and Bluetooth to collect data and uploads it to central servers every hour.
Britain rejected the system Apple and Google are developing because it would take too long, said Matthew Gould, CEO of the National Health Service’s digital unit overseeing its development. The British app is weeks away from being “technically ready” for deployment, he told a Parliamentary committee.
Later versions of the app would let users upload an anonymized list of people they’ve been in contact with and location data, to help draw a “social graph” of how the virus spreads through contact, Gould said.
Those comments set off alarm bells among British scientists and researchers, who warned last week in an open letter against going too far by creating a data collection tool. “With access to the social graph, a bad actor (state, private sector, or hacker) could spy on citizens’ real-world activities,” they wrote.
Despite announcing plans to back European initiatives or develop its own app, Spain’s intricate plan for rolling back one of the world’s strictest confinements doesn’t include a tracing app at all. The health minister said the country will use apps when they are ready but only if they “provide value added” and not simply because other countries are using them.
Aritz Parra in Madrid contributed to this story.
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