Once popular for attacking AI, ASCII smuggling is embraced by spammers

Once popular for attacking AI, ASCII smuggling is embraced by spammers

fivenewscrypto    septembre 06, 2026   

A clever technique used to hide malicious prompts in attacks on AI agents has been adopted by spammers to evade filters on email platforms that are designed to flag unwanted messages used in mass campaigns.

The technique is broadly known as ASCII smuggling. It gained attention two years ago as a means of making a class of AI attack known as prompt injections more stealthy. Malicious instructions embedded in emails or other untrusted content to be processed by an LLM aren’t written in ordinary text. Instead, they’re rendered by a special range of Unicode tags. For example, the tag point U+E0041 mirrors “A,” and U+E0061 mirrors “a.”

No longer just for obscuring prompt injections

The block of 128 tags mimics a portion of the American Standard Code for Information Interchange almost perfectly, with one major difference: the characters they encode are readable by computers but, by design, are almost completely invisible to humans. By expressing the malicious prompts in these tags, LLMs detect the instructions, but people reading the email never see them. There’s much more about ASCII smuggling here.

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Pentagon rescinds new testosterone screening policy without explanation

Pentagon rescinds new testosterone screening policy without explanation

fivenewscrypto    septembre 06, 2026   

Following Defense Secretary Pete Hegseth's startling announcement in July that the US military would begin mandatory testosterone screening for personnel, the Pentagon released a clinical guidance document on September 2 outlining the new medically questionable policy.

The next day, though, the clinical guidance document disappeared, as did an accompanying statement by spokesperson Sean Parnell. The withdrawal was first reported by Reuters.

In a statement sent to Ars Technica, the Pentagon said that the document, titled "Clinical Guidance for Health and Human Performance Optimization," had been temporarily rescinded on September 3 to allow for updates.

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A ratings board wouldn't let Valve release a trailer. It "leaked" it instead.

A ratings board wouldn't let Valve release a trailer. It "leaked" it instead.

fivenewscrypto    septembre 06, 2026   

Back in 2009, Ars wrote about what was being reported as a leaked trailer for the then-upcoming Left 4 Dead 2, saying the footage "looks like it’s straight from a high-gloss action movie." Today, we need to offer an important update to this crucial, 17-year-old story: The trailer "leak" was orchestrated by Valve itself.

That news comes courtesy of former Valve writer Chet Faliszek, who said in a newly posted video about cut lines in the game that "for Left 4 Dead 2 with the ESRB... we leaked our trailer ahead of time because they wouldn't let us release the trailer."

Faliszek is referring to the Entertainment Software Rating Board, the self-regulating industry group that, since 1994, has offered sometimes questionable age-appropriateness ratings for thousands of games submitted to its purview. While many smaller and/or online-focused game makers skip out on getting those ratings these days, at the time, any publisher that wanted space on major retailers' shelves needed to submit to the ESRB's standards.

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Second complete map of a fruit fly brain completed

Second complete map of a fruit fly brain completed

fivenewscrypto    septembre 05, 2026   

On Friday, researchers announced the completion of a map of every neuron in the brain of a male fruit fly. The "connectome" provides a tool that can accelerate neurobiology research. But it also provides an opportunity to do some science on its own, as the connectome of a female Drosophila had been completed earlier this year. The work also provided the team behind it the opportunity to refine tools that are likely to be applied to ever-more complex nervous systems, including (potentially) those of vertebrates.

The new work involved a collaboration between biologists at the Howard Hughes Medical Institute's Janelia Research Campus and computer scientists at Google—both acknowledge that neither could have done the project without the other. Preparation of an entire brain for imaging at the necessary resolution requires a distinct set of skills, as does interpreting what those images indicate. But building a complete picture of the hundreds of millions of synapses in a brain as small as the fruit fly's is a task that can't be achieved by humans in a manageable amount of time.

The people behind the effort expect that in the long term, the effort will be worth it, as the connectome could give neurobiologists a valuable tool for understanding how the brain works.

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Anthropic’s $2 trillion IPO puts powerful external trustees in spotlight

Anthropic’s $2 trillion IPO puts powerful external trustees in spotlight

fivenewscrypto    septembre 05, 2026   

Anthropic’s prospective public-market investors must reckon with an external group of trustees that control the majority of the AI company’s board, as its planned blockbuster initial public offering forces close scrutiny of its experimental governance structure.

The company’s Long-Term Benefit Trust (LTBT) is a small group of advisers created to safeguard the lab’s mission of developing AI for the long-term benefit of humanity, even as commercial pressures intensify.

The trust holds no equity in Anthropic, but has significant influence, with the San Francisco-based company planning to preserve its role after a stock market debut that could value the Claude maker at as much as $2 trillion.

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Musk wins court order to block use of “Twitter,” but not “tweet” and bird logo

Musk wins court order to block use of “Twitter,” but not “tweet” and bird logo

fivenewscrypto    septembre 05, 2026   

On Thursday, Elon Musk’s X won a court order blocking Operation Bluebird from launching a new app taking over the Twitter name.

In his opinion, Chief Judge Colm Connolly explained that Operation Bluebird was unlikely to prove that X had entirely abandoned the Twitter name. Therefore, X was likely to succeed on trademark infringement and dilution claims tied to the platform’s former name.

Most compellingly, X argued that it still uses the Twitter name in the current listing for the X app in Apple’s App Store. In the first sentence of that listing, written in the same size font as the rest of the text, a single clause clinched the early court win for X by stating, “Welcome to X (formerly known as Twitter).”

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Trump White House just tossed a grenade into international space relations

Trump White House just tossed a grenade into international space relations

fivenewscrypto    septembre 05, 2026   

The normally genteel world of international space policy turned ugly this week as several prominent US space companies—including SpaceX, Blue Origin, Stoke Space, K2, and Starcloud—pulled out of a high-profile French space summit organized by the country's president, Emmanuel Macron.

Politico first reported the diplomatic turmoil, saying that the White House "pressured" US space companies to skip Macron's space summit in Paris next week. Since then, the companies have largely pulled out of the meeting without commenting publicly, though some US representation remains on the two-day program.

Multiple sources confirmed to Ars that an official with the White House Office of Science and Technology Policy, or OSTP, led the call with US space companies late last week. The call was convened in response to queries from US industry about the French meeting, which is not part of the traditional circuit of international space conferences.

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