Users cry foul after AMD stripped memory crypto from its consumer CPUs

Users cry foul after AMD stripped memory crypto from its consumer CPUs

fivenewscrypto    juin 16, 2026   

A decade ago, AMD added a protection to its high-end CPUs to protect them against cold boot attacks and other types of physical exploits that siphon sensitive data out of the connected memory chips. Short for Transparent Secure Memory Encryption, TSME encrypts the entire contents stored in memory, making the data useless to physical attackers.

Over time, AMD added TSME to lower-end processors, including the consumer version of its Ryzen chips, a CPU that costs less than the Pro version. Over the years, users of these lower-end chips have gotten used to the added security. Recently and without warning or notice, this lower-end line of AMD chips suddenly dropped the protection, and did so in a way that was impossible to detect on Windows machines and required a fair amount of technical work when using Linux.

Now you see it, now you don't

AMD has yet to say why TSME worked on these CPUs, or even to confirm the change. AMD declined to answer questions sent by email other than to say TSME "is a security feature only applied to PRO CPUs as part of AMD PRO Technologies." The statement is the first known time the chipmaker has explicitly made this restriction public.

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20 years of Intel Macs: Why Apple switched, and why it switched again

20 years of Intel Macs: Why Apple switched, and why it switched again

fivenewscrypto    juin 16, 2026   

The release of macOS 27 later this fall won't quite close the book on the Intel Mac. The last handful of models that could run macOS 26 Tahoe will be eligible for security and Safari updates for two more years, and elements of the Rosetta compatibility layer for running Intel code on Apple Silicon Macs will be with us in some form for some indeterminate amount of time after that.

But macOS 26 is definitely the last chapter of the Intel Mac story. Anything that happens after this is a coda or an epilogue.

Most of our WWDC coverage has been forward-looking, so indulge us if you will in a look backward at the full history of the Intel Mac, a partnership between two companies that made Macs dramatically better, until it started making them worse.

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Good news—we have extra time before the Sun ends life on Earth

Good news—we have extra time before the Sun ends life on Earth

fivenewscrypto    juin 15, 2026   

It’s a bit worrying when a scientific paper begins, “How long will life on Earth survive?” But in this case—a study by Jacob Haqq‐Misra of Blue Marble Space and Eric Wolf at the University of Colorado Boulder—the billion-plus-year timeline under consideration shouldn’t cause you too much existential panic.

The context for this question is that we understand the Sun will brighten as it eventually matures into a red giant that swallows the Earth in a solar furnace. So, where along that 5 billion-year path will life on Earth, in fact, be cooked?

Weathering and the weather

This isn’t just a question of incoming radiation. Among the thermostat-like stabilizing feedback loops in Earth’s climate, the cycling of CO₂ through the solid Earth is a major factor over timescales this long. The weathering of silicate rocks at the surface converts atmospheric CO₂ into carbonate that ends up on the seafloor, where it can be subducted into the mantle with tectonic plates. (And eventually, it can cycle back out to the atmosphere through volcanoes.)

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F1 in Spain: An old-fashioned strategy fight can still be thrilling

F1 in Spain: An old-fashioned strategy fight can still be thrilling

fivenewscrypto    juin 15, 2026   

Formula 1 raced in Spain this past weekend. The Barcelona-Catalunya circuit is one of F1's purpose-built race tracks, with a number of fast corners and a track surface that's more abrasive than usual. That means downforce is the name of the game. Catalunya has always required good aerodynamics, but it's doubly important now. The more speed you can carry through a corner, the less energy you have to add on the following straight, and energy management is now as important in F1 as it is at Le Mans or in Formula E or even IndyCar. And the more downforce you have, the less the car slides, and the less the car slides, the less the tires get eaten up.

It's the tire wear that suggested the strategies. So far, all the races this season have been one-stop affairs as drivers make their required change from one tire compound to another. But 66 laps of Catalunya would require at least three sets of Pirelli tires to get to the end. Maybe even four. As the tires wear, they become slower, to the tune of 0.2–0.3 seconds per lap. And one way to exploit that is with an "undercut"—pit early, change onto fresh rubber, and make use of the tire offset against your rivals to put in fast laps while they're losing time. Do it right, and when they make their next pit stop, you should be in front.

Splitting the race into four stints means one more pit stop, and it costs about 22 seconds to drive through the pit lane, stop in the box, and then exit the pit lane again, assuming a tire change in less than three seconds. But since each set of tires is needed for fewer laps, they can be worked hard enough to offset that 22-second pit stop and more.

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Russia appears set to finally address long-term, serious space station cracks

Russia appears set to finally address long-term, serious space station cracks

fivenewscrypto    juin 15, 2026   

Ten days ago, in a moment of very high drama in orbit, NASA directed its astronauts living on the International Space Station to briefly seek emergency refuge in a Crew Dragon spacecraft.

Since then, neither the US space agency nor Roscosmos has provided additional public information about the situation in orbit. But according to sources who spoke to Ars, following the spectacle in space, the problem has been successfully fixed.

At issue were persistent cracks in a small area of the International Space Station attached to the Russian Zvezda service module, known as the PrK module. The problem has been ongoing since 2019, and Russian astronauts have been attempting various fixes, often using a sealant called Germetall-1.

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Did a medieval flying monk spot Halley's comet, twice? It's complicated

Did a medieval flying monk spot Halley's comet, twice? It's complicated

fivenewscrypto    juin 15, 2026   

Early in the 11th century, a young Benedictine monk named Eilmer jumped from the 150-foot tower of his abbey in the small English town of Malmesbury, wearing a pair of crude wings he’d fashioned from willow wood and cloth. Eilmer managed to glide a good 600 feet, passing over the city wall before crash-landing in a small valley near the river Avon. The fall broke both his legs, crippling him. Malmesbury Abbey still boasts a stained-glass window in honor of Brother Eilmer.

This legendary experiment in medieval aviation comes to us via 12th-century historian William of Malmesbury in an account written circa 1125, although William neglected to provide future historians with an exact date for the feat. But William does mention another key episode in Eilmer's life when the monk was "advanced in years": Eilmer witnessed Halley's comet in 1066, commenting, "It is long since I saw you." Some historians have interpreted this to mean that Eilmer saw Halley's comet on an earlier fly-by in 989, when he would have been a young boy.

Assuming Eilmer was at least 5 years old in 989, he would have been born no later than 984. This would make Eilmer in his 80s in 1066, with his attempt at flight—which occurred when he was "in his first youth"—likely falling between 1000 and 1010. However, it's an estimate that is based on a lot of assumptions, according to James Aitcheson of the University of Leicester, who argues in a paper published in the journal Notes and Queries that Eilmer may have seen a different comet altogether in his youth—the comet of 1018. If so, he would have been born much later, and the date of his flight would have occurred between the 1020s and 1040s.

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Review: Disclosure Day is big on action, light on ideas

Review: Disclosure Day is big on action, light on ideas

fivenewscrypto    juin 15, 2026   

The summer blockbuster season has kicked off in earnest with the theatrical release of Disclosure Day, director Steven Spielberg’s highly anticipated return to his “aliens are among us” sci-fi roots. Verdict: There's not much fresh or original here as movies about aliens go, but it's a fast-paced film with a luminous performance by Emily Blunt that won't fail to entertain.

(Some spoilers below but no major reveals.)

The first half of the film is essentially a political thriller—shades of 1974's The Parallax View and similar films—as global tensions have the world teetering on the brink of World War III. A cybersecurity specialist named Daniel (Josh O'Connor) has stolen a piece of alien technology and highly classified files from his employer, Wardex Corporation, a top-secret extension of the US government led by Noah Scanlon (Colin Firth). Scanlon flushes out Daniel by holding his girlfriend Jane (Eve Hewson) hostage. At the trade-off, Daniel double-crosses them and escapes with Jane, and the two go on the run as Scanlon declares Daniel a traitor.

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