Agregátor RSS

Samsung Galaxy Buds 4 Pro posouvají svou řadu dál hlavně tam, kde to dává smysl. Přinášejí výrazně lepší aktivní potlačení hluku, jistější zvuk a špičkové hovory, přitom zůstávají pohodlné a bezproblémové při každodenním používání. Nejde o revoluci, ale o dotaženou evoluci, která míří na absolutní ...

Internetové podvody obvykle spoléhají na chamtivost nebo strach. V posledních týdnech se ale v Česku rychle šíří falešná zpráva, která hraje na zcela jinou strunu – na ochotu pomoct známému. Záškodníci využívají populární komunikátor WhatsApp. Stačí malé zaváhání a z běžného uživatele se může stát ...

Internetové podvody obvykle spoléhají na chamtivost nebo strach. V posledních týdnech se ale v Česku rychle šíří falešná zpráva, která hraje na zcela jinou strunu – na ochotu pomoct známému. Záškodníci využívají populární komunikátor WhatsApp. Stačí malé zaváhání a z běžného uživatele se může stát ...

O všech těch Expedicích a KCDčkách jsem loni psal nesčetněkrát. Rok 2025 ale ani zdaleka nebyl jen o velkých hrách. Vyšly tisíce titulů a kolikrát se na českém rybníčku nedostalo moc pozornosti ani těm, které podle agregátoru recenzí Metacritic patří mezi nejlépe hodnocené. V tomto článku najdete ...

Na čem pracují vývojáři webového prohlížeče Ladybird (GitHub)? Byl publikován přehled vývoje za březen (YouTube).

Velikonoce přinášejí nejen volné dny, ale také pořádnou dávku slev. Tento týden najdete výhodné nabídky na kosmetiku, obuv, LEGO, cestování i mobilní tarify. Připravili jsme pro vás přehled deseti tipů, které stojí za pozornost.

With billions invested and prototypes being tested outside the lab, the quantum era is starting to take shape.

The unveiling by IBM of two new quantum supercomputers and Denmark’s plans to develop “the world’s most powerful commercial quantum computer” mark just two of the latest developments in quantum technology’s increasingly rapid transition from experimental breakthroughs to practical applications.

There is growing promise of quantum technology’s ability to solve problems that today’s systems struggle to overcome or cannot even begin to tackle, with implications for industry, national security, and everyday life.

So, what exactly is quantum technology? At its core, it harnesses the counterintuitive laws of quantum mechanics, the branch of physics describing how matter and energy behave at the smallest scales. In this strange realm, particles can exist in several states simultaneously (superposition) and can remain connected across vast distances (entanglement).

Once the stuff of abstract theory, these effects are now being engineered into innovative, cutting-edge systems: computers that process information in entirely new ways, sensors that measure the world with unprecedented precision, and communication networks that are virtually impossible to compromise.

To understand how this emerging field could shape the future, here are five areas where quantum technology may soon have a tangible impact.

1. Discovery for Medicine and Materials Science

A pharmaceutical scientist seeks to design a new medicine for a previously incurable disease. There are thousands of possible molecules, many ways they might interact inside the body, and uncertainty about which will work.

In another lab, materials researchers explore thousands of different atomic combinations and ratios to develop better batteries, chemicals, and alloys to reduce transport emissions. Traditional supercomputers can narrow the options but eventually meet their limits.

This is where quantum computing could make a decisive difference. These machines use quantum bits, or qubits—the most basic unit of information in a quantum computer. Qubits do not simply consist of 1s and zeroes, like bits in conventional computers, but can exist in a variety of different quantum “states.”

Indeed, the ability to develop and control qubits is central to advancing quantum computing and other quantum technologies. By using qubits, quantum computers can simulate vast numbers and different possibilities simultaneously, revealing patterns that classical systems cannot reach within useful time-frames.

In healthcare, faster drug discovery could bring quicker response to outbreaks and epidemics, personalized medicine, and insight into previously inscrutable biological interactions. Quantum simulation of how materials behave could lead to new high efficiency energy materials, catalysts, alloys and polymers.

Although fully operational, commercial quantum computers are still in development, progress is accelerating, with existing paradigms combining quantum and classic computational approaches already demonstrating the potential to reshape how we discover and design cures.

2. Sensors for Navigation, Medicine, and the Environment

A new range of sensors can exploit different quantum phenomena such as superposition and entanglement to detect changes that conventional instruments would miss, with potential uses across many areas of daily life.

In navigation, they could guide ships, submarines, and aircraft without GPS by reading subtle variations in the Earth’s magnetic and gravitational fields.

In medicine, quantum sensors could improve diagnostic capabilities via more sensitive, quicker, and noninvasive imaging modes.

In environmental monitoring, these sensors could track delicate shifts beneath the Earth’s surface, offer early warnings of seismic activity, or detect trace pollutants in air and water with exceptional accuracy.

3. Optimization for Logistics and Finance

Many of the hardest challenges today concern the optimization of staggeringly complex systems; the task of choosing the best option among billions of possibilities.

Managing a power grid or investment portfolio, scheduling flights or financial trading, or coordinating global deliveries all feature optimization problems so complex that even advanced supercomputers struggle to find efficient answers in time.

Quantum computing could change this. Quantum algorithms could be used to solve optimization problems that are intractable using classical approaches.

By using quantum principles to explore many solutions simultaneously, these systems could identify solutions far faster than traditional methods. A logistics company could adjust delivery routes in real time as traffic, weather, and demand shift.

Airlines and rail networks could automatically reconfigure to avoid cascading delays, while energy providers might balance renewable generation, storage, and consumption with far greater precision. Banks could use quantum computers to evaluate numerous market scenarios in parallel, informing the management of investment portfolios.

4. Ultra-Secure Communication

Security is one of the areas where quantum technology could have the most immediate impact. Quantum computers are inching ever closer to being capable of breaking many of today’s encryption systems (such as RSA encryption which secures data transmission on the internet), posing a major cybersecurity challenge.

At the same time, quantum communication techniques, such as quantum key distribution (QKD), could offer intrinsically secure encrypted communication.

In practical terms, this could secure everything from financial transactions and health records to government and military communications. For national security agencies, quantum-safe encryption is already a strategic priority. For the average person, it could mean stronger digital privacy, more reliable identity systems, and reduced risk of cyberattacks.

5. Supercharging Progress in AI

Artificial intelligence is already reshaping industries, but is reliant on the immense computing power needed to train and run large models. In the future, quantum computing could boost AI by handling calculations that classical machines find too complex.

While still at an early stage of development, quantum algorithms might accelerate a subset of AI called machine learning (where algorithms improve with experience), help simulate complex systems, or optimize AI architectures more efficiently. That could lead to AI systems that learn faster, understand context better, and process far larger datasets than today’s models allow.

Think of AI assistants that understand you more naturally, medical diagnostic tools that integrate genomic and environmental data in real time, or scientific research that advances through rapid, quantum-boosted simulations.

Why This Matters…and What to Watch

Quantum technology is no longer just a theoretical pursuit. Optimism is increasing that commercially viable and scalable quantum technologies may become a reality over the next 10 years. With billions in global investment and a growing number of prototypes being tested outside the lab, the “quantum era” is starting to take shape.

Governments see it as a strategic priority, and industries see it as a competitive edge. Its ripple effects could touch nearly every sector from healthcare, energy, and finance, to defense, and beyond.

That means we should be asking whether our education systems, workforce dynamics, infrastructure, and governance mechanisms are effective—and whether they are keeping pace.

Those who invest early and strategically in quantum readiness and who have the patience to sustain this effort will shape how this technology unfolds. When it does arrive, even if we might be a few years away, its impact could reach far beyond the lab into every part of our connected, data-driven world.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

The post Five Ways Quantum Technology Could Shape Everyday Life appeared first on SingularityHub.

ESP-IDF (Espressif IoT Development Framework), tj. oficiální vývojový framework pro vývoj aplikací na mikrokontrolérech řady ESP32, byl vydán v nové verzi 6.0. Detaily na portálu pro vývojáře.

A headline feature introduced in the latest release of Windows 11, 25H2 is Administrator Protection. The goal of this feature is to replace User Account Control (UAC) with a more robust and importantly, securable system to allow a local user to access administrator privileges only when necessary. This blog post will give a brief overview of the new feature, how it works and how it’s different from UAC. I’ll then describe some of the security research I undertook while it was in the insider preview builds on Windows 11. Finally I’ll detail one of the nine separate vulnerabilities that I found to bypass the feature to silently gain full administrator privileges. All the issues that I reported to Microsoft have been fixed, either prior to the feature being officially released (in optional update KB5067036) or as subsequent security bulletins. Note: As of 1st December 2025 the Administrator Protection feature has been disabled by Microsoft while an application compatibility issue is dealt with. The issue is unlikely to be related to anything described in this blog post so the analysis doesn’t change.

While our previous two blog posts provided technical recommendations for increasing the effort required by attackers to develop 0-click exploit chains, our experience finding, reporting and exploiting these vulnerabilities highlighted some broader issues in the Android ecosystem. This post describes the problems we encountered and recommendations for improvement. Audio Attack Surface The Dolby UDC is part of the 0-click attack surface of most Android devices because of audio transcription in the Google Messages application. Incoming audio messages are transcribed before a user interacts with the message. On Pixel 9, a second process com.google.android.tts also decodes incoming audio. Its purpose is not completely clear, but it seems to be related to making incoming messages searchable.

With the advent of a potential Dolby Unified Decoder RCE exploit, it seemed prudent to see what kind of Linux kernel drivers might be accessible from the resulting userland context, the mediacodec context. As per the AOSP documentation, the mediacodec SELinux context is intended to be a constrained (a.k.a sandboxed) context where non-secure software decoders are utilized. Nevertheless, using my DriverCartographer tool, I discovered an interesting device driver, /dev/bigwave that was accessible from the mediacodec SELinux context. BigWave is hardware present on the Pixel SOC that accelerates AV1 decoding tasks, which explains why it is accessible from the mediacodec context. As previous research has copiously affirmed, Android drivers for hardware devices are prime places to find powerful local privilege escalation bugs. The BigWave driver was no exception - across a couple hours of auditing the code, I discovered three separate bugs, including one that was powerful enough to escape the mediacodec sandbox and get kernel arbitrary read/write on the Pixel 9.

Over the past few years, several AI-powered features have been added to mobile phones that allow users to better search and understand their messages. One effect of this change is increased 0-click attack surface, as efficient analysis often requires message media to be decoded before the message is opened by the user. One such feature is audio transcription. Incoming SMS and RCS audio attachments received by Google Messages are now automatically decoded with no user interaction. As a result, audio decoders are now in the 0-click attack surface of most Android phones. I’ve spent a fair bit of time investigating these decoders, first reporting CVE-2025-49415 in the Monkey’s Audio codec on Samsung devices. Based on this research, the team reviewed the Dolby Unified Decoder, and Ivan Fratric and I reported CVE-2025-54957. This vulnerability is likely in the 0-click attack surface of most Android devices in use today. In parallel, Seth Jenkins investigated a driver accessible from the sandbox the decoder runs in on a Pixel 9, and reported CVE-2025-36934.

KYBERCENTRUM vydalo knihu ceského kryptologa a popularizátora Pavla Vondrušky, která dokazuje, jak muže veda o kódech a šifrách být fascinující a dobrodružná.
Kniha byla v drívejším vydání v edici OKO zcela vyprodána a nebylo ji možné získat.
Nyní je tedy možnost ji zakoupit v e-shopu KYBERCENTRA. Ale pozor k prodeji touto cestou bylo uvolnen pouze omezený pocet 200 kusu .

Kniha p?edního ?eského popularizátora kryptologie dokazuje, jak fascinující a dobrodružná m?že v?da o kódech a šifrách být.
Kniha vyšla v 2006 v nákladu 8000 ks a byla brzy zcela vyprodána.
Kniha nyní vyjde pomocí Crowdfundingu v rámci projektu Centra kybernetické bezpe?nosti, z. ú. (KyberCentrum).
Podpo?te tento projekt a stanete se vlastníci této knihy.

Kniha P.Vondrušky - Kryptologie, šifrování a tajná písma op?t vyjde.
Knihu lze získat v rámci projektu Kybercentra (Crowdfunding).

NIST has posted an update on their post-quantum cryptography program:

• Update


• NISTIR 8309 Status Report on the Second Round of the NIST Post-Quantum Cryptography Standardization Process

Po kolikáté ?

Policisté v Praze zadrželi dva cizince t?sn? po tom, co do bankomatu nainstalovali skimmovací za?ízení s cílem dostat se k pen?z?m klient?. U zadržených muž? pak policisté zajistili i celou ?adu nástroj? k páchání této trestné ?innosti a vysíla?ky, informoval ve st?edu policejní mluv?í Jan Dan?k.

Užite?ný p?ísp?vek "14 Ways to Create a Secure Password in 2019" na stále pot?ebné téma jak vytvá?et a pamatovat si hesla od Jacka Forstera.