Twitter Turmoil, Staff Exodus Aggravate Security Concerns

In this file photo taken on October 28, 2022, the Twitter logo is seen on the exterior of Twitter headquarters in San Francisco, California. (AFP)
In this file photo taken on October 28, 2022, the Twitter logo is seen on the exterior of Twitter headquarters in San Francisco, California. (AFP)
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Twitter Turmoil, Staff Exodus Aggravate Security Concerns

In this file photo taken on October 28, 2022, the Twitter logo is seen on the exterior of Twitter headquarters in San Francisco, California. (AFP)
In this file photo taken on October 28, 2022, the Twitter logo is seen on the exterior of Twitter headquarters in San Francisco, California. (AFP)

Twitter's owner Elon Musk has pledged the platform will not become a "hellscape," but experts fear a staff exodus following mass layoffs may have devastated its ability to combat misinformation, impersonation and data theft.

Twitter devolved into what campaigners described as a cesspit of falsehoods and hate speech after recent layoffs cut half the company's 7,500 staff and fake accounts proliferated following its botched rollout of a paid verification system, AFP said.

Further throwing the influential platform into disarray -– and raising doubt about its very existence -– reports said hundreds of employees chose to depart the company Thursday in defiance of an ultimatum from Musk.

"The huge number of layoffs and resignations raises serious questions about content moderation and the security of user data," Cheyenne Hunt-Majer, from the nonprofit Public Citizen, told AFP.

"It is imperative that (US regulators) act with urgency as users could have their sensitive data exploited or even stolen given the lack of sufficient staff that remain to adequately protect it."

The hashtag #RIPTwitter gained huge traction on the site after resignations poured in from employees who chose "no" to Musk's demand that they either be "extremely hardcore" or exit the company.

Twitter has plunged into turmoil as Musk, a self-professed free speech absolutist, seeks to shake up the money-losing company after his blockbuster $44 billion buyout late last month.

- 'Debacle' -
The site's content moderation teams -– largely outsourced contractors that combat misinformation –- have been axed and a number of engineers fired after openly criticizing Musk on Twitter or on an internal messaging board, according to reports and tweets.

Wary brands have paused or slowed down ad spending -– Twitter's biggest revenue source -– after a spike in racist and anti-Semitic trolling on the platform.

"Misinformation super spreaders" –- or untrustworthy accounts peddling falsehoods -- saw a 57 percent jump in engagement in the week after Musk's acquisition of Twitter, according to a survey by the nonprofit watchdog group NewsGuard.

"Elon Musk has swiftly decimated Twitter's ability to maintain the platform's integrity, health and safety," said Jessica Gonzalez, co-chief executive officer at the nonpartisan group Free Press.

"If there is one lesson that all social-media platforms must take away from this debacle, it's that without protecting users from hate and lies you have no company at all."

In a response to critics, Musk on Friday indicated a new direction for content moderation on the site.

While not being totally removed from the site, Musk said that "negative/hate tweets" will be "max deboosted (and) demonetized, so no ads or other revenue to Twitter."

"You won't find the tweet unless you specifically seek it out, which is no different from rest of Internet," he added.

But his plan fell on skeptical ears.

- 'Significant blow' -
"We could certainly see a spike in misinformation, hate speech, and other objectionable content because of Musk's latest moves," Zeve Sanderson, executive director of the New York University's Center for Social Media and Politics, told AFP.

"Content moderation is a lot harder to do without people around to actually do content moderation."

Potentially adding to the pressure: Musk on Saturday restored the Twitter account of Donald Trump, 22 months after the then-president was suspended over the US Capitol riot by his supporters seeking to overturn the 2020 election result.

In a letter to the Federal Trade Commission, a regulatory agency, a group of Democratic senators blamed Musk for introducing "alarming" new features that undermined safety despite warnings that they would be "abused for fraud, scams and dangerous impersonation."

"Users are already facing the serious repercussions of this growth-at-all-costs strategy," they wrote in the letter published Thursday, noting the recent spike in fake accounts impersonating companies, politicians and celebrities.

Among the victims was drugmaker Eli Lilly, whose stock price nosedived -- erasing billions in market capitalization -- after a parody account stamped with a verification tag purchased for $8 tweeted that insulin was being made available for free.

Last week, Twitter disabled sign-ups for the contentious feature known as Twitter Blue, with reports saying it had been temporarily disabled to help address impersonation issues -- but not before several brands took a hit.

Given the apparent vulnerabilities, digital experts have warned activists, particularly in autocratic countries, of the increased risk of identity theft or their private messages falling into the hands of hackers.

"Around the world, Twitter is used to organize against oppression," said Hunt-Majer.

"If Musk's mismanagement kills it, that would be a significant blow to freedom of information and, frankly, human rights in general on a global scale."



New Process for Stable, Long-Lasting Batteries

The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 
The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 
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New Process for Stable, Long-Lasting Batteries

The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 
The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 

Researchers at the Paul Scherrer Institute PSI have achieved a breakthrough on the path to practical application of lithium metal all-solid-state batteries.

The team expects the next generation of batteries to store more energy, are safer to operate, and charge faster than conventional lithium-ion batteries.

The team has reported these results in the journal Advanced Science.

All-solid-state batteries are considered a promising solution for electromobility, mobile electronics, and stationary energy storage – in part because they do not require flammable liquid electrolytes and therefore are inherently safer than conventional lithium-ion batteries.

Two key problems, however, stand in the way of market readiness: On the one hand, the formation of lithium dendrites at the anode remains a critical point.

On the other hand, an electrochemical instability – at the interface between the lithium metal anode and the solid electrolyte – can impair the battery’s long-term performance and reliability.

To overcome these two obstacles, the team led by Mario El Kazzi, head of the Battery Materials and Diagnostics group at the Paul Scherrer Institute PSI, developed a new production process:

“We combined two approaches that, together, both densify the electrolyte and stabilize the interface with the lithium,” the scientist explained.

Central to the PSI study is the argyrodite type LPSCl, a sulphide-based solid electrolyte made of lithium, phosphorus, and sulphur. The mineral exhibits high lithium-ion conductivity, enabling rapid ion transport within the battery – a crucial prerequisite for high performance and efficient charging processes.

To densify argyrodite into a homogeneous electrolyte, El Kazzi and his team did incorporate the temperature factor, but in a more careful way: Instead of the classic sintering process, they chose a gentler approach in which the mineral was compressed under moderate pressure and at a moderate temperature of only about 80 degrees Celsius.

The result is a compact, dense microstructure resistant to the penetration of lithium dendrites. Already, in this form, the solid electrolyte is ideally suited for rapid lithium-ion transport.

To ensure reliable operation even at high current densities, such as those encountered during rapid charging and discharging, the all-solid-state cell required further modification.

For this purpose, a coating of lithium fluoride (LiF), only 65 nanometres thick, was evaporated under vacuum and applied uniformly to the lithium surface – serving as a ultra-thin passivation layer at the interface between the anode and the solid electrolyte.

In laboratory tests with button cells, the battery demonstrated extraordinary performance under demanding conditions.

“Its cycle stability at high voltage was remarkable,” said doctoral candidate Jinsong Zhang, lead author of the study.

After 1,500 charge and discharge cycles, the cell still retained approximately 75% of its original capacity.

This means that three-quarters of the lithium ions were still migrating from the cathode to the anode. “An outstanding result. These values are among the best reported to date.”

Zhang therefore sees a good chance that all-solid-state batteries could soon surpass conventional lithium-ion batteries with liquid electrolyte in terms of energy density and durability.

Thus El Kazzi and his team have demonstrated for the first time that the combination of solid electrolyte mild sintering and a thin passivation layer on lithium anode effectively suppresses both dendrite formation and interfacial instability.

This combined solution marks an important advance for all-solid-state battery research – not least because it offers ecological and economic advantages: Due to the low temperatures, the process saves energy and therefore costs.

“Our approach is a practical solution for the industrial production of argyrodite-based all-solid-state batteries,” said El Kazzi. “A few more adjustments – and we could get started.”


Meta Urges Australia to Change Teen Social Media Ban

Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP
Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP
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Meta Urges Australia to Change Teen Social Media Ban

Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP
Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP

Tech giant Meta urged Australia on Monday to rethink its world-first social media ban for under-16s, while reporting that it has blocked more than 544,000 accounts under the new law.

Australia has required big platforms including Meta, TikTok and YouTube to stop underage users from holding accounts since the legislation came into force on December 10 last year.

Companies face fines of Aus $49.5 million (US$33 million) if they fail to take "reasonable steps" to comply.

Billionaire Mark Zuckerberg's Meta said it had removed 331,000 underage accounts from Instagram, 173,000 from Facebook, and 40,000 from Threads in the week to December 11.

The company said it was committed to complying with the law.

"That said, we call on the Australian government to engage with industry constructively to find a better way forward, such as incentivizing all of industry to raise the standard in providing safe, privacy-preserving, age appropriate experiences online, instead of blanket bans," it said in statement.

Meta renewed an earlier call for app stores to be required to verify people's ages and get parental approval before under-16s can download an app.

This was the only way to avoid a "whack-a-mole" race to stop teens migrating to new apps to avoid the ban, the company said.

The government said it was holding social media companies to account for the harm they cause young Australians.

"Platforms like Meta collect a huge amount of data on their users for commercial purposes. They can and must use that information to comply with Australian law and ensure people under 16 are not on their platforms," a government spokesperson said.

Meta said parents and experts were worried about the ban isolating young people from online communities, and driving some to less regulated apps and darker corners of the internet.

Initial impacts of the legislation "suggest it is not meeting its objectives of increasing the safety and well-being of young Australians", it said.

While raising concern over the lack of an industry standard for determining age online, Meta said its compliance with the Australian law would be a "multilayered process".

Since the ban, the California-based firm said it had helped found the OpenAge Initiative, a non-profit group that has launched age-verification tools called AgeKeys to be used with participating platforms.


China Is Closing in on US Technology Lead Despite Constraints, AI Researchers Say

 Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)
Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)
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China Is Closing in on US Technology Lead Despite Constraints, AI Researchers Say

 Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)
Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)

China can narrow its technological gap with the US driven by growing risk-taking and innovation, though the lack of advanced chipmaking tools is hobbling the sector, the country's leading artificial intelligence researchers said on Saturday.

China's so-called "AI tiger" startups MiniMax and Zhipu AI had strong debuts on the Hong Kong Stock Exchange this week, reflecting growing confidence in the sector as Beijing fast-tracks AI and chip listings to bolster domestic alternatives to advanced US technology.

Yao Shunyu, a former senior researcher at ChatGPT maker OpenAI ‌who was named ‌technology giant Tencent's chief AI scientist in December, ‌said ⁠there was a ‌high likelihood of a Chinese firm becoming the world's leading AI company in the next three to five years but said the lack of advanced chipmaking machines was the main technical hurdle.

"Currently, we have a significant advantage in electricity and infrastructure. The main bottlenecks are production capacity, including lithography machines, and the software ecosystem," Yao said at an AI conference in Beijing.

China has completed a working prototype of an extreme-ultraviolet lithography ⁠machine potentially capable of producing cutting-edge semiconductor chips that rival the West's, Reuters reported last month. However, the ‌machine has not yet produced working chips and may ‍not do so until 2030, people with ‍knowledge of the matter told Reuters.

MIND THE INVESTMENT GAP

Yao and other ‍Chinese industry leaders at the Beijing conference on Saturday also acknowledged that the US maintains an advantage in computing power due to its hefty investments in infrastructure.

"The US computer infrastructure is likely one to two orders of magnitude larger than ours. But I see that whether it's OpenAI or other platforms, they're investing heavily in next-generation research," said Lin Junyang, technical lead for Alibaba's flagship Qwen large language model.

"We, ⁠on the other hand, are relatively strapped for cash; delivery alone likely consumes the majority of our computer infrastructure," Lin said during a panel discussion at the AGI-Next Frontier Summit held by the Beijing Key Laboratory of Foundational Models at Tsinghua University.

Lin said China's limited resources have spurred its researchers to be innovative, particularly through algorithm-hardware co-design, which enables AI firms to run large models on smaller, inexpensive hardware.

Tang Jie, founder of Zhipu AI which raised HK$4.35 billion in its IPO, also highlighted the willingness of younger Chinese AI entrepreneurs to embrace high-risk ventures - a trait traditionally associated with Silicon Valley - as a positive development.

"I think if we can improve this environment, ‌allowing more time for these risk-taking, intelligent individuals to engage in innovative endeavors ... this is something our government and the country can help improve," said Tang.