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Category: privacy

Glowing Green: A Quantitative Analysis of Photoluminescence in Six North American Bat Species

WhatsApp is rolling out passkey-encrypted backups for iOS and Android devices, enabling users to encrypt their chat history using their fingerprint, face, or a screen lock code.

Passkeys are a passwordless authentication method that allows users to sign in using biometrics (such as face recognition or fingerprint), PINs, or security patterns instead of traditional passwords. They enable logging into websites, online services, or apps without needing to remember complex passwords or use a password manager.

When creating a passkey, your device generates a unique cryptographic key pair consisting of a private key stored on the device and a public key sent to the website or app. Because of this, passkeys provide significantly improved security over regular credentials, seeing that they can’t be stolen in data breaches because the private key never leaves your device.

2025 Nobel Prize in Physics Peer Review

Introduction.

Grounded in the scientific method, it critically examines the work’s methodology, empirical validity, broader implications, and opportunities for advancement, aiming to foster deeper understanding and iterative progress in quantum technologies. ## Executive Summary.

This work, based on experiments conducted in 1984–1985, addresses a fundamental question in quantum physics: the scale at which quantum effects persist in macroscopic systems.

By engineering a Josephson junction-based circuit where billions of Cooper pairs behave collectively as a single quantum entity, the laureates provided empirical evidence that quantum phenomena like tunneling through energy barriers and discrete energy levels can manifest in human-scale devices.

This breakthrough bridges microscopic quantum mechanics with macroscopic engineering, laying foundational groundwork for advancements in quantum technologies such as quantum computing, cryptography, and sensors.

Overall strengths include rigorous experimental validation and profound implications for quantum information science, though gaps exist in scalability to room-temperature applications and full mitigation of environmental decoherence.

Framed within the broader context, this award highlights the enduring evolution of quantum mechanics from theoretical curiosity to practical innovation, building on prior Nobel-recognized discoveries like the Josephson effect (1973) and superconductivity mechanisms (1972).

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ReVault flaws let hackers bypass Windows login on Dell laptops

ControlVault3 firmware vulnerabilities impacting over 100 Dell laptop models can allow attackers to bypass Windows login and install malware that persists across system reinstalls.

Dell ControlVault is a hardware-based security solution that stores passwords, biometric data, and security codes within firmware on a dedicated daughterboard, known as the Unified Security Hub (USH).

The five vulnerabilities, reported by Cisco’s Talos security division and dubbed “ReVault,” affect both the ControlVault3 firmware and its Windows application programming interfaces (APIs) across Dell’s business-focused Latitude and Precision laptop series.

Alarming New System Can Identify People Through Walls Using Wi-Fi Signal

Adding to the technological horror show is a troubling new system known as “WhoFi,” a high-tech apparatus that can track humans through Wi-Fi.

A team of researchers at the Sapienza University of Rome recently released a paper outlining a new system capable of detecting “biometric signatures” through distortions in Wi-Fi signals. Notably, the system can surveil humans regardless of lighting conditions, and can sense them through walls.

The researchers say that WhoFi can capture “rich biometric information,” identifying individual people with a 95.5 percent accuracy rate.

New Wi-Fi fingerprint system re-identifies people without devices

Surveillance in the digital age is no longer limited to cameras and smartphones. From facial recognition to GPS logs, the tools used to monitor people have grown increasingly sophisticated.

Now, researchers in Italy have shown that even ordinary Wi-Fi signals can be used to track people, without needing them to carry any device at all.

A team from La Sapienza University of Rome has developed a system called ‘WhoFi,’ which can generate a unique biometric identifier based on how a person’s body interacts with surrounding Wi-Fi signals.

Italian researchers turn Wi-Fi signals into biometric tools, enabling passive tracking of individuals without phones using AI.

Synthetic data boosts gait analysis: AI trained on simulations rivals existing models

Gait assessment is critical for diagnosing and monitoring neurological disorders, yet current clinical standards remain largely subjective and qualitative. Recent advances in AI have enabled more quantitative and accessible gait analysis using widely available sensors such as smartphone cameras.

However, most existing AI models are designed for specific patient populations and sensor configurations, primarily due to the scarcity of diverse clinical datasets—a constraint often driven by privacy concerns. As a result, these models tend to underperform when applied to populations or settings not well represented in the , limiting their broader clinical applicability.

In a study published in Nature Communications, researchers from IBM Research, the Cleveland Clinic, and the University of Tsukuba propose a novel framework to overcome this limitation. Their approach involves generating synthetic gait data using generative AI trained on physics-based musculoskeletal simulations.

New surveillance technology can track people by how they disrupt Wi-Fi signals

Hi-tech surveillance technologies are a double-edged sword. On the one hand, you want sophisticated devices to detect suspicious behavior and alert authorities. But on the other, there is the need to protect individual privacy. Balancing public safety and personal freedoms is an ongoing challenge for innovators and policymakers.

This debate is set to reignite with news that researchers at La Sapienza University in Rome have developed a system that can identify individuals just by the way they disrupt Wi-Fi signals.

The scientists have dubbed this new technology “WhoFi.” Unlike traditional biometric systems such as fingerprint scanners and , it doesn’t require direct physical contact or visual feeds. WhoFi can also track individuals in a larger area than a fixed-position camera, provided there is a Wi-Fi network.

Websites are tracking you via browser fingerprinting, researchers show

Clearing your cookies is not enough to protect your privacy online. New research led by Texas A&M University has found that websites are covertly using browser fingerprinting—a method to uniquely identify a web browser—to track people across browser sessions and sites.

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