When a Bluetooth contact is registered by the app and followed by one of the two concerned users testing positive, some calculations need to be carried out to determine whether the interaction carried a high risk of infection. Distance, time, and the infectiousness of the person who tested positive together create an "alert trigger score", or "risk threshold", which, when it is met, triggers a notification. … [Read more...] about NHS contact-tracing app upgrade is more likely to warn users to self-isolate
Contact lens infection
College campuses are an ideal test ground for an array of COVID contact-tracing efforts. Schools can require students to download and install apps in a way that health officials cannot with the general population—although, as Politico notes, students' participation and compliance may be less than full and enthusiastic, particularly when it comes to disclosing contacts who may have been drinking while underage. … [Read more...] about College contact-tracing app readily leaked personal data, report finds
Lens Hoods Block Unwanted Light When you take a photo of something, the light reflecting off of it enters the camera through the front of the lens. The light rays pass through the different lens elements, which work together to focus it onto the camera’s sensor. If you’ve got everything set up correctly, you’ll get a great looking photo. … [Read more...] about What Does a Lens Hood Do, and When Should You Use One?
It’s not the first time researchers have found botnets used to provide networks for quasi-anonymous Internet usage. Security journalist Brian Krebs has reported on themover the years since as early as 2008. Various researchers have also documented them. One thing that Bitdefender found interesting about this time is that the anonymous proxy was being advertised on the clearnet rather than in darknet forums. … [Read more...] about Thousands of infected IoT devices used in for-profit anonymity service
Of course, the first thing you’ll need is a math problem to solve. Google Lens can solve simple equations such as “5+2” or more complex formulas such as “x2 – 3x + 2.” You can scan the problem from a real-world piece of paper or from a digital display. … [Read more...] about How to Solve Math Problems Using Google Lens