If you spend more than 25,000 euros a year with your card, the PIN will not be the only information they ask for

He cash is increasingly anecdotal for consumers, not only because of the lack of concern that comes with not having to be looking for a cashier to withdraw cash from time to time, but for the convenience that the mobile payments. However, from January 1, 2026, the Treasury will have stricter control over payments made with bank cards. If a card accumulates more than 25,000 euros in annual expenses, financial institutions will be obliged to “submit an annual informative return” on these movements to the Treasury. Payments of more than 25,000 euros must be declared. The new measure is included in the regulatory modification introduced by the Royal Decree 253/2025allowing the State to detect possible fraud and ensure that capital movements of a certain size are transparent and justified. This control comes at a time when most payments are made digitally and cash is increasingly used less. Therefore, the regulations that already required financial institutions to notify cash movements have been reinforced. The scope is expanded. Until now, the regulations required notification of payments with cards and Bizum of more than 3,000 euros per year to companies and professionals. However, the scope of the measure is now extended to all charges made by card in any payment method, both in physical establishments and online, as well as through platforms linked to telephone numbers. That is, it not only affects credit or debit card payments, but also extends the measure to Bizum or other mobile payment systems. “Banking or credit entities and other entities that, in accordance with current regulations, provide the collection management service through cards, with physical or virtual support, that offer cash, debit, deferred debit, credit and electronic money functions, in any currency, as well as through payments associated with a mobile phone number, to businessmen and professionals established in Spain,” the regulations specify. Differentiation between companies and individuals. The new regulations establish differences between business and private use, but in both cases entities must notify movements of more than 25,000 euros annually. For self-employed workers and companies, the new regulations eliminate the minimum limits to communicate card operationswhich implies that any payment, regardless of its amount, must be reported to the Tax Agency. This significantly increases the monitoring and traceability of all commercial operations carried out with card or mobile payment. On the other hand, for individual consumers, only those who have a high annual spending with cards will be subject to this more exhaustive tax control. What information is reported? In accordance with the provisions of article 38ter that modifies the new Royal Decree, financial entities must notify the Treasury of the following data about the holders and linked payment products of those who spend more than 25,000 euros per year in card spending: Contract number formalized by the entity for the issuance of cards. Identification data of the contract holders (or their authorized persons or beneficiaries), which will include name and surname or company name, tax identification number, country of residence, and date of birth for natural persons. In the absence of a tax identification number, the passport number or identity number valid in your country of origin and the country issuing the identification documentation will be provided. Card number (PAN) associated with the contract and type of card. Number of subscriptions and their total amount, registered on the card in the year, with indication of the number of cash recharges and their total amount, made on the card in the year (movements and total amount of the expense) Number of charges and their total amount, recorded on the card in the year, with an indication of the number of spending operations carried out with the card and their total amount, derived from payments made in establishments in the year and the number of cash withdrawals and their total amount, made with the card in the year. Identification of the account, if applicable, to which the card operation is linked, through its International Bank Account Code (IBAN) or, failing that, through the corresponding customer account code. In Xataka | In 2030 we will no longer have to enter card numbers in purchases. Mastercard already has a substitute Image | Unsplash (Nathana Rebouças)

They have created a pixel so small that it fits on the tip of a pin

We’ve been talking about smart glasses for years, but the big obstacle has always been the same: the screen is still too big to go unnoticed. At the University of Würzburg, a group of physicists assures having manufactured the “smallest light-emitting pixel in the world”, a light point that measures about 300 by 300 nanometers and that, even with that size, reaches, according to the team, the brightness of a conventional 5 by 5 micrometer OLED pixel. If the technology can scale, a complete microdisplay could be practically integrated into the frame of glasses, invisible to the naked eye. The advance comes from Germany, where a team led by physicists Bert Hecht and Jens Pflaum has managed to reduce OLED technology to a scale never before achieved. Your work was published on October 22, 2025 in Science Advances and describes a method for fabricating ultra-compact light-emitting pixels using optical antennas. The goal is not just to demonstrate that they work, but to lay the foundation for a new generation of projection modules for smart glasses and other wearable devices. A tiny pixel, big brightness. More than a question of size, the discovery lies in the luminous intensity that they have managed to maintain by miniaturizing the structure. The result points to very high resolutions in practically imperceptible spaces. In a device of this type, the panel is not seen from the front: it acts as a light source that projects the image onto the lens, which allows the projection system to be integrated into areas as discreet as the frame of glasses. Scheme of the nanopixel developed in Würzburg High resolution in no space. Reducing a light source to nanometric dimensions without losing power is not only a question of miniaturization, but of materials engineering. The team has shown that it is possible to guide the current and optimize the emission in a structure where space barely allows room for error. With this control, OLED technology enters a new phase, in which pixels cease to be discrete elements and become optical components with antenna behavior. To achieve this, the researchers had to completely redesign the way current flows within the pixel. In previous attempts, the electricity was concentrated at the edges and ended up damaging the material, like lightning that always seeks the shortest path. Their solution was to add a thin insulating layer that blocks these leaks and leaves a tiny central opening through which the current passes in a controlled manner. This way they achieved a stable emission without the pixel being destroyed over time. Efficiency and color. Although the prototype demonstrates solid operating density and stability, its external quantum efficiency is as low as 1%. The researchers hope to improve that figure by optimizing organic materials and antenna architecture, and plan to expand the emission spectrum to all three primary colors. Only then could this technology be considered ready for the next generation of portable microdisplays. Images | Xataka with Gemini 2.5 | Isis France In Xataka | Xiaomi AI Glasses are much more than Ray-Ban Meta because they are not just a product. They are a platform

The first great fiasco in the AI ​​era is the AI ​​Pin of Humane. HP has put the last nail in its coffin

He Ai pin Humane was born as the first product of a company founded by former Apple employees, in order to make the smartphone concept obsolete. A 100% device focused on AI functions, with camera, laser projection to read Qualcomm text and processor. In Xataka we were able to throw the glove and, from the first minute, We were clear that I was not going to succeed. Behind him Commercial failure That had the product, the last nail in the coffin has put it HP. The company has bought a good part of Humane And the first decision after sale has been to stop selling and supporting the AI ​​Pin. A product that was just a few months in the market. The purchase. Humane will sell most of your company to HP for 116 million dollars. Both companies have closed an agreement through which HP is made the intellectual property of more than 300 patents of Humane, including its AI platform Cosmosthe AI ​​Pin operating system. What HP is looking for. According to Tuan Tran statements, HP Technology and Innovation President, “this investment will quickly accelerate our ability to develop a new generation of devices that organize without problems the requests for both the local and cloud levels.” In other words, HP wants to accelerate the implementation of AI in its products. A meaningful movement being the PCs with ia a new claim And having told Xataka the Ketan Patel himself, head of the HP PCs and Portable Division, who see the AI ​​as a crucial component for the future of the PC. The immediate consequence. Goodbye to AI Pin, without half inks. Humane has announced that the devices will stop connecting to their servers from next February 28. “We write to inform you that, with immediate effect, we will end the AI ​​Pin consumer service because our commercial priorities have changed.” The company has not shaken the pulse to justify it due to “commercial priorities”, and explained what will happen to the devices already sold. First, AI Pin stops selling immediately. After February 28, he will stop connecting to Humane servers, so he cannot access images, videos or notes taken with him. Similarly, from this day, all the data will be removed permanently. In summary, AI PIN will become a pisapapeles of 700 dollars in which you can only access offline functions such as … look at the battery level. The first great fiasco of the AI ​​era. That a product is 100% based on AI has a potential problem. If the company decides to forget it months later, you will have a Pisapapeles without any function. In the case of Humane have been changes in commercial priorities, but the list of possible reasons (commercial failures, business sale, technical problems, regulations, bankruptcy, etc.) that can be used in the future is unabarcable. The Humane case is a hard blow to the “AI Products” sector, throwing even more doubts about the reasonable (or not) to buy a device that depends 100% on a server. Image | Humane In Xataka | Almost no mobile manufacturer is thinking about his own AI for his devices. It has enough logic

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