Mark Webber of the University of Sussex, UK, and his colleagues studied how powerful a quantum computer would be needed to crack bitcoin in terms of the number of qubits, or quantum bits equivalent to conventional computational bits.
Every bitcoin transaction must be “confirmed” by a network of miners before it can be added to the blockchain. Each transaction is assigned a cryptographic key during this confirmation process, and cracking the key will allow you to become the owner of those bitcoins.
Transactions are declared and a key is associated with this transaction. There is a finite window of time during which this key is vulnerable, and it varies, but it is usually from 10 minutes to an hour, maybe a day.
Webber’s team calculated that it would take a quantum computer with 1.9 billion qubits to break the bitcoin encryption in 10 minutes, and a machine with 317 million qubits to break in an hour. Even taking into account a whole day, this figure drops to only 13 million qubits.
This is encouraging news for bitcoin holders because IBM’s top quantum computer only has 127 qubits, so quantum computers need to become a million times more powerful to threaten the cryptocurrency. And this, according to Webber, is unlikely to happen within the next decade.
MSI Unveils Commercial 14 Laptop for the Enterprise Market: Security, Office Functions, and Environmental Care
MSI has unveiled a new laptop at Computex – Commercial 14. It is designed for the B2B market, has features for corporate security and remote work. In addition, it is partly made from recycled plastic.
The exact model (or models) of the processors that will be used in Commercial 14 are not named – it is only known that it will be the 13th generation Intel Core i7 chip. Screen diagonal – 14 inches, resolution – FHD + (1920 x 1200).
Among the features of the laptop, we can distinguish the presence of an NFC reader and an e-ID card slot. Thanks to them, an employee of the company will be able to enter the system by attaching (or inserting) his pass card to the computer. The available list of specifications says nothing about Windows Hello support, but above the screen you can see a couple of elements that look like an IR emitter and an IR sensor that can be used to unlock the system in the face.
The keyboard topcase is made from recycled materials (PCR) and over 90% of the packaging is made from recycled paper. This may attract companies claiming to follow a strategy of caring for the environment.
MSI also showcased the Mercedes-AMG Motorsport Stealth 16 performance laptop at Computex, a collaboration with Mercedes-AMG, as well as other models for gaming, work and creativity.
Microsoft has released a new version of Windows 11: a new widget panel, copying security codes, improved “Settings” and more
Microsoft has released a major functional update for the Windows 11 operating system. It brings an extensive list of innovations and improvements to various aspects of the system.
Windows 11 22H2 Moment 3 (KB5026446) is currently available as an optional update, but these changes will also be included in the mandatory Patch Tuesday in June.
One of the main features is the new look of the widget panel with three columns – with two columns for news and one for widgets. Microsoft has also included animated icons for widgets on the taskbar. Another big change is the ability to copy security codes from notifications, so if you use two-factor authentication and receive notifications via email (or SMS from your phone), you can immediately copy this code to your clipboard.
The Settings app now has a USB4 page where you can manage docking stations and connected devices. There’s also now a Presence Privacy Settings page that gives you more granular control over features like wake up your PC when approached or lock when you leave. There are also additional settings for brightness, touch keyboard. The Accounts page has also been updated to accurately display the available storage for all of a user’s OneDrive subscriptions.
In File Explorer, context menus now support access keys. Accessibility has also been improved, including support for live subtitles in more languages, as well as support for voice access in more English dialects.
Taskbar improvements include displaying VPN status, and in response to user feedback, there is now an option to display seconds on the clock on the taskbar. The update brings an extra layer of protection against phishing and insecure passwords, and adds support for Bluetooth Low Energy Audio.
This is not a complete list of changes that Windows 11 22H2 Moment 3 brings. There are also improvements that are less noticeable to users, as well as a number of bugs, crashes and shortcomings.
Telegram has a vulnerability that allows attackers to use the MacBook’s camera and microphone
Google engineer Dan Reva has discovered a vulnerability in Telegram for macOS that allows attackers to use the laptop’s camera and microphone.
The vulnerability allows to inject a dynamic library (Dylib) with a malicious exploit into Telegram on macOS. With it, attackers will be able to record video from a camera with sound and save the file to a hidden folder on a Mac. Moreover, video and audio recording will work even if the corresponding permissions are disabled.
This is possible because Telegram for macOS does not use Apple’s built-in Hardened Runtime security mechanism.
Reva reported this issue to the Telegram team in February 2022. But the developers did not get in touch and still have not eliminated the vulnerability.
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