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"But Chia's replacement for bitcoin's energy-intensive "proof of work" system, called "proof of space and time", instead requires users to devote massive amounts of hard drive space to generating and storing random numbers, with rewards doled out to those with the most space used up"

""The satellite's two-year mission will be to develop 'hack-proof' quantum communications, allowing users to send messages securely and at speeds faster than light," Xinhua reported."

"The Purdue researchers have created Electro-Quasistatic Human Body Communication (EQS-HBC) which uses low-frequency, carrier-less broadband transmission, and so keeps the signal almost entirely within the human body. That means data from pacemakers and other implantable medical devices would only be readable a handful of centimetres outside the wearer."

"Increasing numbers of implantable medical devices are now gaining internet connectivity, giving doctors the ability to monitor patients health remotely, and even update the devices to tweak a treatment plan. Unfortunately, that flexibility offers a way for hackers to hijack that hardware, and even potentially make changes to the way the devices work. While so far no attacks have been successful, proof-of-concept attacks have been available for years"

"Take Yoti, for instance: the company provides a range of age verification services, partnering with CitizenCard to offer a digital version of its ID, and working with self-service supermarkets to experiment with automatic age recognition of individuals. John Abbott, Yoti's chief business officer, says the system is already as good as a person at telling someone's age from a video of them, and has been tested against a wide range of demographics - including age, race and gender - to ensure that it's not wildly miscategorising any particular group. The company's most recent report claims that a "Challenge 21" policy (blocking under-18s by asking for strong proof of age from people who look under 21) would catch 98% of 17-year-olds, and 99.15% of 16 year olds, for instance."

"Halifax's system, which is currently at the proof-of-concept stage, uses a piece of wearable technology known as the Nymi band; it monitors and stores a user's heartbeat via an electrocardiogram (ECG). Users must wear the Nymi on one wrist, and touch its top sensor with the opposite hand for it to work. The Nymi pairs with a smartphone via Bluetooth, using a companion app for Windows, Mac, iOS and Android. Removal of the wristband invalidates biometric authentication."

""Having a tamper-proof record-keeping system that can be shared across the vaccine supply chain is always important, but critically so here for the COVID vaccines," Harmon said. Hedera's chief executive believes that decentralized computer networks with hundreds or even thousands of participants can play an important role in other aspects of pandemic management - to combat vaccine counterfeiting, for example, and create unforgeable vaccination certificates."

"Over the next few months, Lipkin's assignments dwindled. Managers began referring to her as "Olivia/ChatGPT" on Slack. In April, she was let go without explanation, but when she found managers writing about how using ChatGPT was cheaper than paying a writer, the reason for her layoff seemed clear. "Whenever people brought up ChatGPT, I felt insecure and anxious that it would replace me," she said. "Now I actually had proof that it was true, that those anxieties were warranted and now I was actually out of a job because of AI.""

"The fact that flow is not only rare, but draining; and that taking a break to scroll a different screen or play a game on your phone can be restorative, is proof of the need for nuance. The moralising over productivity and screentime is unhelpful when it comes to finding solutions - but highly profitable as the boom in (useless) blue-light glasses and "distraction-free" tech goes to show."

"First, the problems were manually translated into formal mathematical language for our systems to understand. In the official competition, students submit answers in two sessions of 4.5 hours each. Our systems solved one problem within minutes and took up to three days to solve the others. AlphaProof solved two algebra problems and one number theory problem by determining the answer and proving it was correct. This included the hardest problem in the competition, solved by only five contestants at this year's IMO. AlphaGeometry 2 proved the geometry problem, while the two combinatorics problems remained unsolved."