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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"

""This online system has left the population's Covid vaccine statuses exposed to absolutely anyone to pry into. Date of birth and postcode are fields of data that can be easily found or bought, even on the electoral roll. "This is personal health information that could easily be exploited by companies, insurers, employers or scammers. Robust protections must be put in place immediately and an urgent investigation should be opened to establish how such basic privacy protections could be missing from one of the most sensitive health databases in the country.""

"It can be a tricky balance, especially as machines become more sophisticated. "Usually artificial intelligence systems are capable of coping better than humans because, as an example, they don't suffer from annoyance. They are infinitely patient, they don't care about wasting time," says Mauro Migliardi, associate professor at the University of Padua in Italy. He recently coauthored a paper summarizing 20 years of captcha versions and their effectiveness."

"So here's where we are: an online system has been running wild for years, generating billions in profits for its participants. We have evidence of its illegitimacy and a powerful law on the statute book that in principle could bring it under control, but which we appear unable to enforce. And the only body that has, to date, been able to exert real control over the aforementioned racket is… a giant private company that itself is subject to serious concerns about its monopolistic behaviour. And the question for today: where is democracy in all this? You only have to ask to know the answer."

""It's really easy to lose track on social media," Bowman said. "And most people are not on Twitter, but this stuff percolates on to Facebook, WhatsApp chats, everywhere." The ambition, Ritchie says, is not "for Toby Young to tweet, actually I was wrong. They're in an ideological system where they're not interested in a real debate. It's for the person who hears someone say something bizarre, and thinks, I don't know how to reply to that.""

"Personal information of more than 243 million Brazilians was exposed for more than six months thanks to weakly encoded credentials stored in the source code of the Brazilian Ministry of Health's website. The data leak exposed both living and deceased Brazilians' medical records to possible unauthorized access. The incident was the second reported by Brazilian publication Estadão and among several others recently affecting South America's largest nation's healthcare system."

"The police are attempting to use YouTube's stringent copyright system to keep people from posting recordings of encounters with law enforcement. In a video posted Thursday by the Anti Police-Terror Project (APTP), a community organization dedicated to defunding the Oakland Police Department, Alameda County Sheriff's deputy David Shelby pulled out his phone and began playing Taylor Swift's "Blank Space" during an encounter. He openly admitted, "it can't be posted to YouTube.""

"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."

"One in three councils are using computer algorithms to help make decisions about benefit claims and other welfare issues, despite evidence emerging that some of the systems are unreliable."

"Jim Baker served as the FBI's general counsel from 2014 until 2017, and he presided over the the FBI's attempt to force Apple to undermine its cryptography under the rubric of investigating the San Bernadino shooters; he has long been a prominent advocate for mass surveillance, but he has had a change of heart: in a long, detailed essay on Lawfare, Baker explains why he believes that governments should not seek to introduce defects into cryptographic systems."

"An artificial intelligence program has been developed that is better at spotting breast cancer in mammograms than expert radiologists. The AI outperformed the specialists by detecting cancers that the radiologists missed in the images, while ignoring features they falsely flagged as possible tumours."

""China has a politically weaponized system of censorship; it is refined, organized, coordinated and supported by the state's resources," said Xiao Qiang, a research scientist at the School of Information at the University of California, Berkeley, and the founder of China Digital Times. "It's not just for deleting something. They also have a powerful apparatus to construct a narrative and aim it at any target with huge scale." "This is a huge thing," he added. "No other country has that." "

"Jonga - the innovative township community alarm system launched by Mgiba and Shezi earlier this year - combines a wireless motion sensor with a six-month battery life and a 100-decibel siren with an Android app that sends text messages to five pre-selected contacts when the alarm is triggered."

"Crucial to his success, he says, was YouTube's recommendation system, the feature that promotes videos for you to watch on the homepage or in the "Up Next" column to the right of whatever you're watching. "We were recommended constantly," he tells me. YouTube's algorithms, he says, figured out that "people getting into flat earth apparently go down this rabbit hole, and so we're just gonna keep recommending.""

"The submission outlines Big Blue's belief that facial recognition is fine in a "1 to 1" context such as unlocking a phone. But IBM is opposed to "1 to many" facial recognition that refers to a database to identify a face in a crowd and could therefore be used for "mass surveillance systems, racial profiling or other human rights violations.""

"Chinese consumers are increasingly standing up to Internet giants for their digital privacy in an unprecedented way. China is in the early stages of setting up a data protection regulatory system. The Cyber Security Law, effective Jun 1, 2017, included for the first time a set of data protection provisions in the form of national-level legislation. The 2018 e-Commerce Law incorporated data privacy protections for consumers such as the "right to be forgotten", similar to the EU's General Data Protection Regulation."

"Researchers showed detectors can be defeated by inserting inputs called adversarial examples into every video frame. The adversarial examples are slightly manipulated inputs which cause artificial intelligence systems such as machine learning models to make a mistake. In addition, the team showed that the attack still works after videos are compressed."

"SINGAPORE: Personal information of about 129,000 Singtel customers was stolen after a recent data breach of a third-party file sharing system, the local telco said on Wednesday (Feb 17). Singtel has completed initial investigations into the breach and established which files on the Accellion file transfer appliance (FTA) were accessed illegally, the company said in a news release."

"These experiments in computational creativity are enabled by the dramatic advances in deep learning over the past decade. Deep learning has several key advantages for creative pursuits. For starters, it's extremely flexible, and it's relatively easy to train deep-learning systems (which we call models) to take on a wide variety of tasks."