Com o prazo das candidaturas para o Cheque Formação+Digital a terminar, reunimos uma seleção com 6 cursos de curta duração que ainda podem ser concluídos a tempo de beneficiar do apoio.
Bilhetes falsos, lojas fraudulentas, phishing temático e até kits de fraude associados ao Mundial FIFA 2026 estão à venda na dark web. As empresas de cibersegurança revelam as principais ameaças e pedem cuidados redobrados.
AI-generated images are widespread on social media. Starting in August 2026, platforms will be required under the EU AI Act to label certain types of such content. A study by CISPA researcher Sandra Höltervennhoff investigates how users perceive these so-called AI labels and how they influence the credibility of information.
Tech industry layoffs are accelerating, and executives have been quick to say it’s because their companies are doing more with artificial intelligence, even when there may be more to it.
Box, a Silicon Valley software maker, expects to have more employees, not fewer, as it hires A.I. architects, A.I. solutions managers and other new A.I.-related positions.
"Around 570 cables (plus a further 80 planned) carry between 95% and 99% of the world's intercontinental telecommunications data," reports CNN (since fiber cables offer speeds of terabits per second, carry much more data than satellite links). And "networks of green energy cables carrying electricity are also starting to sprawl across the world's seabeds."
Now to protect them, the U.S., Australia and the U.K. "are planning to develop new unmanned undersea vehicles" as part of their trilateral security partnership.
Western governments see a growing risk of Russian and Chinese sabotage of undersea cables and are also concerned that Iran may seek to exploit the many data networks running through the shallow waters of the Persian Gulf. The "seabed is a battlefield" said Australia's Defence Minister, Richard Marles, in Singapore, calling for tougher action against so-called shadow-fleet vessels... The programme will improve the three nations' reconnaissance and strike capabilities, "and bolster superiority in anti-submarine and anti-surface warfare," as well as mine countermeasures, [according to a statement from their trilateral AUKUS partnership]... The new AUKUS project will sharpen all three countries' ability to respond to threats, including those targeting underwater cables and pipelines, through a range of "cutting edge sensors and weapons systems for undersea drones," UK Defence Secretary John Healey said.
Marles said undersea internet cables — "the arteries of modern civilization" — were being cut at an unprecedented rate, with island nations like Australia acutely vulnerable. "Over the past 18 months, we have witnessed a series of attacks against subsea critical infrastructure at a scale and frequency that is historically unprecedented," he said. The UK government has also highlighted the vulnerability of the world's digital highways. "Every international payment, every cross-border trade executed in milliseconds, every flow of data between businesses here in the UK and markets overseas — all travel along the seabed," Telecoms Minister Liz Lloyd said Friday... Last month, the UK said it had tracked three Russian submarines covertly surveying undersea cables in the north Atlantic... A UK parliamentary inquiry warned last year that UK infrastructure might be targeted in a crisis, adding it was "not confident that the UK could prevent such attacks or recover within an acceptable time period."
The UK Navy is already exploring the creation of a hybrid force that incorporates the widespread use of underwater drones to combat Russian threats in the Atlantic.
For a few select evenings in the late spring and early summer, sunlight aligns with Manhattan’s grid. The city’s bustling streets are washed with golden light as the sun sets, while tourists and locals alike flood the streets to snap that perfect picture. This event is nicknamed Manhattanhenge and it will begin on May 28 and continue through July 12.
However, you don’t need to live in the Big Apple to see a “henge” like Manhattanhenge. They actually pop up in a few places and a website called Hengefinder can help you find the closest henge.
Meet Hedgefinder
Data scientist and engineer Victoria Ritvo created the website, while software engineer John Pribyl built the accompanying app. Ritvo wrote about creating Hedgefinder in her blog, and details the three basic steps that scientists can use to find a henge. First, find the angle of the road, or its bearing relative to true north. Second, find the angle of the sun at sunset, or its azimuth. Third, find the dates when those two angles match.
While you don’t have to do any of that high-level math, you can read about how Rivoto and Pribyl made their calculations. You simply put in an address or city and can get a calculation for the closet henge near you.
“Having Hengefinder active means henges are now explorable outside of Manhattan, and I’ve been searching for them using the app,” Ritvo writes. “My favorite one so far, I haven’t actually seen. I’m intrigued by the Haarlemmertrekvaart, a canal which traces the southern edge of Westerpark in Amsterdam.”
Interestingly, much of Europe is left out of henge mania due to medieval street design. Amsterdam’s famed canals do offer an option, where sunlight can reflect off of the water. Henges may have been occurring twice a year for the past 400 years on the Haarlemmertrekvaart.
How henges work
The sun does not set in the same place every day. Its position changes along the horizon with the seasons. While the angle does not usually match the directions of a street, it will on a few days each year if the street is angled correctly.
In 1997, the term Manhattanhenge was first coined by Neil deGrasse Tyson, an astrophysicist and director of the Hayden Planetarium at New York’s American Museum of Natural History. Tyson noted that the setting sun framed by Manhattan’s building was comparable to how the sun’s rays strike the center of England’s Stonehenge on the solstice. The Neolithic humans who built the stone circle in stages between 3100 BCE and 1600 BCE intended for the light to shine that way on the solstice. But the builders of Manhattan? Not so much.
Chicagohenge in Illinois and Baltimorehenge in Maryland both occur when the sunset lines up with the grid systems in those cities around the spring and fall equinoxes in March and September. In Canada, Torontohenge occurs in February and October.
When you search Google for something topical, you might see a cluster of headlines from news outlets, reporting breaking stories related to your search query. If you want to focus on those results, you can click to see More news, or navigate to the News tab at the top of the screen.
How these news sources are chosen depends on a variety of signals and factors—just the same as any other Google results—but you now have the ability to set “preferred” sources that will always show up first.
Maybe you want more New York Times and less CNN, or vice versa—Google will let you pick your favorites (which hopefully include Popular Science). This can also help you surface content from news sources you wouldn’t otherwise see in Google, like a local website covering your area.
How to set preferred sources
Setting preferred sources on Google. Screenshot: Google
If you run a Google search on the web for something in the news, topical enough that the Top stories box comes up in your results, you can then click the small icon next to the Top Stories heading to pick your sources. The icon looks like a couple of rectangles with a plus symbol on top.
This brings up a new dialog, where you can pick specific sources. Just start typing the name of the website you want to read more often, and select it when it appears. You can’t add any website on the internet though, only those that are regularly updated (and therefore qualify as news sites).
While there’s no specific set of rules about how often preferred sources show up, Google says you’ll see them “more often” than other outlets. As you add more sources, you’ll see the option to Reload results based on your last search. This should now include your selected sources, as long as they’ve published something related to your search recently.
You can head back to this dialog via the Top stories box whenever you want, and add new preferred sources or remove existing ones—there’s actually no limit to the number of sources you can add, so you’re able to cover a full gamut of perspectives and topics. You can also head to google.com/preferences/source directly in your web browser.
Many news websites have now started adding Add as a preferred source on Google badges on their articles, which you can click directly to jump to the preferred sources dialog. In our articles, you’ll find it’s labeled Add Popular Science, just under the headline and sub-heading—click the link to add us.
Preferred sources and Google News
Google News also lets you select your favorite topics. Screenshot: Google
Google hasn’t officially said anything about how preferred sources in Google search relates to the dedicated Google News website and apps for Android and iOS, but there is some overlap here.
If you head to Google News on the web and then open the Following tab, you’ll see that the preferred sources you’ve selected via search are also listed under Sources. However, there’s no way (at the moment) to add new sources from Google News—you need to go through Google search.
On the dedicated Google News portal, if you click the three dots next to any story, you can opt to see more stories or fewer stories like it—but you can’t specifically request to see more of a particular publisher. You can block an outlet though, by choosing Hide all stories from… on the same menu.
There are other factors that affect your Google News selection as well, and if you scroll down the front page of Google News to the Your topics section, there’s a Customize button to the right. Click on this, and you can tell Google News which topics you want to see more of (like sports, entertainment, and business, for example).
We may well see a closer connection between preferred sources and Google News in the future, but for now there are a variety of ways to customize the stories you get served up inside Google’s portals. If you’re spending a lot of time reading news, it’s worth making sure your favorite publishers appear first.
Artificial intelligence chatbots need to work on their social judgment, recent events suggest. At one end of the spectrum, they're facing lawsuits for recommending dangerous actions. At the other end, the models can be so nice they're considered sycophantic.
Global digital ecosystems frequently feature artificial boundaries that isolate material based on geographical location. Standard server connections often
Anthropic raised $65 billion in new fund-raising that put its value at $900 billion, ahead of OpenAI’s last valuation of $730 billion, as the companies duel for A.I. dominance.
The billionaire’s new roots in Argentina are said to be partly motivated by concerns about the future of the United States and shared beliefs with Argentina’s right-wing leader.
After 88 days of near-total blackout, first reactions to the return of partial connectivity were not celebratory
After 88 days of near-total internet blackout in Iran, long-delayed messages, images and poems flooded phones and social media feeds at about 5pm on Tuesday, when still-limited connectivity flickered back to life.
The first reactions, however, were not celebratory. Many new posts were threaded with scepticism, anxiety and anger.
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