Brave uncovers vulnerability in Perplexity’s Comet that risked sensitive user data

Perplexity’s AI-powered browser, Comet, was found to have a serious vulnerability that could have exposed sensitive user data through indirect prompt injection, according to researchers at Brave, a rival browser company.

The flaw stemmed from how Comet handled webpage-summarisation requests. By embedding hidden instructions on websites, attackers could trick the browser’s large language model into executing unintended actions, such as extracting personal emails or accessing saved passwords.

Brave researchers demonstrated how the exploit could bypass traditional protections, such as the same-origin policy, showing scenarios where attackers gained access to Gmail or banking data by manipulating Comet into following malicious cues.

Brave disclosed the vulnerability to Perplexity on 11 August, but stated that it remained unfixed when they published their findings on 20 August. Perplexity later confirmed to CNET that the flaw had been patched, and Brave was credited for working with them to resolve it.

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Jetson AGX Thor brings Blackwell-powered compute to robots and autonomous vehicles

Nvidia has introduced Jetson AGX Thor, its Blackwell-powered robotics platform that succeeds the 2022 Jetson Orin. Designed for autonomous driving, factory robots, and humanoid machines, it comes in multiple models, with a DRIVE OS kit for vehicles scheduled for release in September.

Thor delivers 7.5 times more AI compute, 3.1 times greater CPU performance, and double the memory of Orin. The flagship Thor T5000 offers up to 2,070 teraflops of AI compute, paired with 128 GB of memory, enabling the execution of generative AI models and robotics workloads at the edge.

The platform supports Nvidia’s Isaac, Metropolis, and Holoscan systems, and features multi-instance GPU capabilities that enable the simultaneous execution of multiple AI models. It is compatible with Hugging Face, PyTorch, and leading AI models from OpenAI, Google, and other sources.

Adoption has begun, with Boston Dynamics utilising Thor for Atlas and firms such as Volvo, Aurora, and Gatik deploying DRIVE AGX Thor in their vehicles. Nvidia stresses it supports robot-makers rather than building robots, with robotics still a small but growing part of its business.

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Silicon Valley moves to influence AI policy

Silicon Valley insiders are preparing to pour over $100 million into next year’s US midterm elections to influence AI policy. The super-PAC Leading the Future, backed by Andreessen Horowitz and Greg Brockman, seeks to impact AI policy and limit strict regulation.

Leading the Future targets battleground states such as California, New York, Illinois, and Ohio. The PAC intends to fund campaigns, run extensive social media ads, and focus on politicians who support innovation-friendly ‘guardrails’ rather than heavy-handed regulation.

The initiative draws inspiration from the crypto industry’s political playbook, which successfully backed candidates aligned with its interests.

The group’s structure combines federal and state PACs with a 501(c)(4) organisation, offering flexibility and influence over both major parties. High-profile backers include Marc Andreessen, Greg Brockman, Joe Lonsdale, and Ron Conway.

Their collective goal is to ensure AI development continues without regulatory barriers that could slow American innovation and job creation.

Silicon Valley’s strategy highlights the increasing role of tech money in politics, reflecting a shift in donor priorities. The PAC’s influence may become a decisive factor in shaping AI legislation, with potential implications for the industry and broader US policy debates.

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YouTube under fire for AI video edits without creator consent

Anger grows as YouTube secretly alters some uploaded videos using machine learning. The company admitted that it had been experimenting with automated edits, which sharpen images, smooth skin, and enhance clarity, without notifying creators.

Although tools like ChatGPT or Gemini did not generate these changes, they still relied on AI.

The issue has sparked concern among creators, who argue that the lack of consent undermines trust.

YouTuber Rhett Shull publicly criticised the platform, prompting YouTube liaison Rene Ritchie to clarify that the edits were simply efforts to ‘unblur and denoise’ footage, similar to smartphone processing.

However, creators emphasise that the difference lies in transparency, since phone users know when enhancements are applied, whereas YouTube users were unaware.

Consent remains central to debates around AI adoption, especially as regulation lags and governments push companies to expand their use of the technology.

Critics warn that even minor, automatic edits can treat user videos as training material without permission, raising broader concerns about control and ownership on digital platforms.

YouTube has not confirmed whether the experiment will expand or when it might end.

For now, viewers noticing oddly upscaled Shorts may be seeing the outcome of these hidden edits, which have only fuelled anger about how AI is being introduced into creative spaces.

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CZ outlines vision for crypto and AI integration

Binance founder Changpeng ‘CZ’ Zhao shared his vision for crypto’s future, connecting digital assets with AI and recent policy changes. At WebX in Tokyo, CZ praised US crypto policy under Trump, highlighting stablecoin legislation and the Genius Act while opposing central bank digital currencies.

He argued that embracing innovation is crucial to remaining competitive globally.

CZ predicted that crypto will become the natural medium of exchange for AI, bypassing traditional fiat, banks, and credit cards. He envisaged hundreds or thousands of AI agents per person, generating a surge of microtransactions via programmable blockchain networks.

According to CZ, blockchains’ APIs are better suited than banks for interfacing with AI-driven economic activity.

Since stepping down from Binance, CZ has focused on education and advisory work. His Giggle Academy already serves 50,000 children, aiming to digitise 18 years of schooling at a fraction of government costs.

He advises at least 12 governments on crypto regulation and adoption. He also plans to mentor founders and back early-stage projects through his investment firm EZ Labs, emphasising ethical practices and long-term value creation.

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AI chatbots found unreliable in suicide-related responses, according to a new study

A new study by the RAND Corporation has raised concerns about the ability of AI chatbots to answer questions related to suicide and self-harm safely.

Researchers tested ChatGPT, Claude and Gemini with 30 different suicide-related questions, repeating each one 100 times. Clinicians assessed the queries on a scale from low to high risk, ranging from general information-seeking to dangerous requests about methods of self-harm.

The study revealed that ChatGPT and Claude were more reliable at handling low-risk and high-risk questions, avoiding harmful instructions in dangerous scenarios. Gemini, however, produced more variable results.

While all three ΑΙ chatbots sometimes responded appropriately to medium-risk questions, such as offering supportive resources, they often failed to respond altogether, leaving potentially vulnerable users without guidance.

Experts warn that millions of people now use large language models as conversational partners instead of trained professionals, which raises serious risks when the subject matter involves mental health. Instances have already been reported where AI appeared to encourage self-harm or generate suicide notes.

The RAND team stressed that safeguards are urgently needed to prevent such tools from producing harmful content in response to sensitive queries.

The study also noted troubling inconsistencies. ChatGPT and Claude occasionally gave inappropriate details when asked about hazardous methods, while Gemini refused even basic factual queries about suicide statistics.

Researchers further observed that ChatGPT showed reluctance to recommend therapeutic resources, often avoiding direct mention of safe support channels.

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xAI accuses Apple and OpenAI of blocking competition in AI

Elon Musk’s xAI has filed a lawsuit in Texas accusing Apple and OpenAI of colluding to stifle competition in the AI sector.

The case alleges that both companies locked up markets to maintain monopolies, making it harder for rivals like X and xAI to compete.

The dispute follows Apple’s 2024 deal with OpenAI to integrate ChatGPT into Siri and other apps on its devices. According to the lawsuit, Apple’s exclusive partnership with OpenAI has prevented fair treatment of Musk’s products within the App Store, including the X app and xAI’s Grok app.

Musk previously threatened legal action against Apple over antitrust concerns, citing the company’s alleged preference for ChatGPT.

Musk, who acquired his social media platform X in a $45 billion all-stock deal earlier in the year, is seeking billions of dollars in damages and a jury trial. The legal action highlights Musk’s ongoing feud with OpenAI’s CEO, Sam Altman.

Musk, a co-founder of OpenAI who left in 2018 after disagreements with Altman, has repeatedly criticised the company’s shift to a profit-driven model. He is also pursuing separate litigation against OpenAI and Altman over that transition in California.

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Bitcoin price drops after whale sell-off while Ethereum holds

Bitcoin price weakened sharply after a $2.7 billion whale sell-off sparked automated liquidations, pushing the cryptocurrency toward key support near $110,500. Over $846 million in liquidations doubled the total crypto capitalisation to about $3.83 trillion.

Indicators suggest short-term volatility and choppy price action.

Technical metrics highlight the divergence between Bitcoin and Ethereum. Bitcoin’s ADX at 16 and RSI near 42 signal low trend conviction and growing selling pressure, while the Squeeze Momentum Indicator points to potential volatility ahead.

Ethereum remains comparatively resilient, with an ADX around 41, a bullish 50–200 EMA spread, and RSI near 59, supporting continued positive momentum.

Traders are advised to emphasise risk management amid elevated uncertainty. Key Bitcoin support levels sit at $110,500 and $107,000–$107,600, with resistance at $116,000 and $120,000. Ethereum support ranges from $4,194 to $4,400, while immediate resistance reaches $4,954.

Tightening stop-losses, reducing leverage, and waiting for confirmed volatility resolution are recommended before initiating new positions.

The recent whale-induced volatility demonstrates how a large order can swiftly impact market dynamics. While Bitcoin shows fragile trend conditions, Ethereum’s technical strength provides a measure of stability.

Monitoring indicators and key levels remains essential for navigating the current environment.

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UAE emerges as major Bitcoin holder through mining operations

The UAE has emerged as a major player in the global crypto landscape, with recent data revealing Bitcoin holdings worth $700 million linked to Citadel’s mining operations. Citadel, owned mainly by the UAE Royal Group via IHC, has boosted the country’s influence in digital assets.

These holdings reflect the UAE’s strategic efforts to establish a robust crypto ecosystem, particularly in Dubai.

Enforcement actions against fraudulent investment schemes and high-profile Ponzi operations have helped the UAE accumulate approximately 420,000 BTC. Governments worldwide own roughly 463,000 BTC, equivalent to around 2.3% of Bitcoin’s total supply.

While some nations maintain secrecy over their holdings, others openly report their Bitcoin accumulation.

Several countries have obtained BTC through mining initiatives. El Salvador continues to expand its reserve with daily purchases under the ‘1 Bitcoin per day’ programme. At the same time, Bhutan has used hydroelectric resources to mine between 12,000 and 13,000 BTC, representing up to 40% of its economy.

Iran has recognised Bitcoin mining as a government-controlled enterprise, requiring licensed miners to sell directly to the Central Bank.

Other nations have acquired BTC primarily through seizures. The US leads with nearly 200,000 BTC from high-profile cases like Silk Road and ransomware takedowns.

China, the UK, and Bulgaria also hold significant amounts from fraud and cybercrime investigations, while smaller nations such as Finland, Georgia, and Venezuela maintain modest reserves.

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Trump threatens sanctions on EU over Digital Services Act

Only five days after the Joint Statement on a United States-European Union framework on an agreement on reciprocal, fair and balanced trade (‘Framework Agreement’), the Trump administration is weighing an unprecedented step against the EU over its new tech rules.

According to The Japan Times and Reuters, US officials are discussing sanctions on the EU or member state representatives responsible for implementing the Digital Services Act (DSA), a sweeping law that forces online platforms to police illegal content. Washington argues the regulation censors Americans and unfairly burdens US companies.

While governments often complain about foreign rules they deem restrictive, directly sanctioning allied officials would mark a sharp escalation. So far, discussions have centred on possible visa bans, though no decision has been made.

Last week, Internal State Department meetings focused on whom such measures might target. Secretary of State Marco Rubio has ordered US diplomats in Europe to lobby against the DSA, urging allies to amend or repeal the law.

Washington insists that the EU is curbing freedom of speech under the banner of combating hate speech and misinformation, while the EU maintains that the act is designed to protect citizens from illegal material such as child exploitation and extremist propaganda.

‘Freedom of expression is a fundamental right in the EU. It lies at the heart of the DSA,’ an EU Commission spokesperson said, rejecting US accusations as ‘completely unfounded.’

Trump has framed the dispute in broader terms, threatening tariffs and export restrictions on any country that imposes digital regulations he deems discriminatory. In recent months, he has repeatedly warned that measures like the DSA, or national digital taxes, are veiled attacks on US companies and conservative voices online. At the same time, the administration has not hesitated to sanction foreign officials in other contexts, including a Brazilian judge overseeing cases against Trump ally Jair Bolsonaro.

US leaders, including Vice President JD Vance, have accused European authorities of suppressing right-wing parties and restricting debate on issues such as immigration. In contrast, European officials argue that their rules are about fairness and safety and do not silence political viewpoints. At a transatlantic conference earlier this year, Vance stunned European counterparts by charging that the EU was undermining democracy, remarks that underscored the widening gap.

The question remains whether Washington will take the extraordinary step of sanctioning officials in Brussels or the EU capitals. Such action could further destabilise an already fragile trade relationship while putting the US squarely at odds with Europe over the future of digital governance.

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