A new report claims that Strava could be used to track people down – despite the platform’s efforts to make their data anonymous. Strava is a fitness tracking platform that allows people to log their exercises as well as engage with other based on their workouts. But it also includes other tools, such as its heatmap feature, which is intended to anonymously gather together people’s journeys and show them on one map. The tool is intended to allow people to see which parts of the world are particularly active, which can be helpful for finding particularly good areas for workouts or trips. But it can also be used to find out people’s personal information, according to a new report. That heatmap data is anonymised, so that it shows more general trends and cannot be used to track specific people who might mark their routes private. But the new research suggests that it is possible to de-anonymise that data, at least in some cases, to work out who lives where. The paper, published by three computer science researchers at North Carolina State University, says that “the home address of highly active users in remote areas can be identified, violating Strava’s privacy claims and posing as a threat to user privacy”. They detailed a complicated process that they claimed was able to find addresses and then combine that with other data from Strava to find the home address of a certain individual. In short, they were able to use the heat map to identify locations where people lived, and then take other location data to work out who might live at that specific house. The attack will not work on everyone: they need to live in remote areas where people’s houses stand on their own, those users need to have the heat map setting switched on, and might run in patterns that do not identify their home addresses, for instance. But the researchers claimed that a significant number of users could be identified based on publicly available information on Strava. That is a “violation of user privacy”, the researchers said. And it could also pose a threat to those users, by allowing people’s addresses to be made public, and then matched to certain activities, such as when they work out or where they tend to travel. The researchers suggested two ways to avoid the attack. One would be to remove heat map data that is clearly near a home, and another would be to add Strava’s existing “privacy zones” tools that block out data from certain locations to its heat map, which is not currently the case. Strava said that it looks to ensure users’ data stays private, and suggested that people concerned about potential issues turn off the use of aggregated user data on their account. “The safety and privacy of our community is our highest priority. We’ve long had a suite of privacy controls (including Map Visibility Controls) that give users control over what they share and who it’s shared with,” the company said. “Strava does not track users or share data without their permission. When users share their aggregated, de-identified data with the Heatmap and Strava Metro, they contribute to a one-of-a-kind data set that helps urban planners as they develop better infrastructure for people on foot and bikes, and makes it easy to plan routes with the knowledge of the community. “The Global Heatmap displays aggregated data from a subset of Strava activities and will not show ‘heat’ unless multiple people have completed an activity in a given area. Any Strava user who does not wish to contribute to the Heatmap can toggle off the Aggregated Data Usage control to exclude all activities or default their Activity Visibility to be only to themselves (’Only You’) for any given activity. “We are consistently strengthening privacy tools and offering more feature education to give users control over their experience on Strava. This includes simplifying our Privacy Policy with our Privacy Label at the top.” Read More Breakthrough could soon allow us to actually use quantum computers, scientists say Three and Vodafone are merging. Here’s what that means for your phone McDonald’s, Delta among websites down after Amazon Web Services cloud crashes Breakthrough could soon allow us to actually use quantum computers, scientists say Three and Vodafone are merging. Here’s what that means for your phone McDonald’s, Delta among websites down after Amazon Web Services cloud crashes

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Google has announced a major update that will see thousands – potentially even millions – of accounts permanently deleted if they have not been used since 2021. The purge will include Gmail, Drive and Photos accounts that have not been used or signed into for at least two years. In a blog post announcing the update, Google said the new policy was primarily for security reasons, as older accounts are typically more vulnerable to threats like spam, phishing scams and hijacking. “Our internal analysis shows abandoned accounts are at least 10x less likely than active accounts to have 2-step verification set up,” the post stated. “Meaning, these accounts are often vulnerable, and once an account is compromised, it can be used for anything from identity theft to a vector for unwanted or even malicious content, like spam.” The policy will only apply to personal accounts, with those associated with organisations like schools and businesses safe from being deleted. The tech giant said the update will be in effect from this week, however no accounts will be deleted until December 2023. “We will take a phased approach, starting with accounts that were created and never used again,” Google wrote. “Before deleting an account, we will send multiple notifications over the months leading up to deletion, to both the account email address and the recovery email (if one has been provided).” Users can avoid being caught up in the purge by doing as little as reading an email sent to the account, or watching a YouTube video while logged in. Google hosts billions of user accounts, though it did not make public how many of them are inactive. It follows similar announcements from Twitter, with chief executive and owner Elon Musk recently rolling out a similar policy that will see usernames recycled if they are associated with accounts that have not been used “for several years”. Read More ‘Google is done’: World’s most powerful AI chatbot offers human-like alternative to search engines

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Every now and then a story comes along which completely changes the way you think about space. For instance, did you know the universe is essentially evaporating right before our eyes? A new study has been released which focuses on the effect that radiation emitted from objects in the solar system can have a massive impact on quantum fields surrounding them. It follows on from Stephen Hawking’s theory that black holes lose mass and evaporate over time as an unusual form of radiation takes effect. Now, astrophysicists Michael Wondrak, Walter van Suijlekom, and Heino Falcke of Radboud University in the Netherlands have stated that this unusual form of radiation is apparent in other objects as well as black holes. Sign up to our free Indy100 weekly newsletter In fact, they believe that “Hawking radiation” could be found in objects apparent everywhere in the universe – and it could mean that the universe is slowly evaporating before our very eyes. "We demonstrate that," Wondrak says in the study published in Physical Review Letters. "In addition to the well-known Hawking radiation, there is also a new form of radiation." "We show that far beyond a black hole the curvature of space-time plays a big role in creating radiation," van Suijlekom explains. "The particles are already separated there by the tidal forces of the gravitational field." Essentially, huge objects in the solar system can cause space-time to bend around them. When that happens, it causes enough change in quantum fields to generate particles which have similar properties to Hawking radiation. Falcke said: "That means that objects without an event horizon, such as the remnants of dead stars and other large objects in the universe, also have this sort of radiation. "And, after a very long period, that would lead to everything in the universe eventually evaporating, just like black holes. This changes not only our understanding of Hawking radiation but also our view of the universe and its future." Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.