

Security
Invisible characters in JavaScript code can hide backdoors
The attack, dubbed Trojan Source, hides malicious code from the user’s eyes.
Researchers at the University of Cambridge told how invisible characters in JavaScript code can put unsuspecting users at risk of attacks. Earlier, SecurityLab wrote that a Trojan Source attack allows you to inject vulnerabilities into the source code. As it has now become known, with its help hackers can also hide malicious code from the user’s eyes and introduce a backdoor.
The new technique works with some of the most widely used programming languages, and attackers can use it to attack the supply chain. The Trojan Source attack exploits the ambiguity introduced by homoglyphs and the Unicode bidirectional mechanism (Bidi), a feature used to arrange character sets from both left-to-right and right-to-left.
According to experts, certain characters can be embedded in JavaScript code to create invisible backdoors and vulnerabilities.
“The attack script implements a very simple HTTP endpoint to validate the network, which ping -c 1 google.com as well as curl -s http[:]//example.com and notifies if these commands completed successfully. The optional HTTP timeout parameter limits the execution time of the command, ”the researchers explained.
If an HTTP parameter with an invisible character is passed, it is assigned to an invisible variable. Likewise, when the checkCommands array is created, this invisible variable is included in the array.
Depending on how you design, not all text editors can highlight invisible characters. Syntax highlighting is not a reliable approach because invisible characters may not appear at all, let alone colored with an IDE text editor.
“The attack requires the text editor / IDE (and the font used) to correctly display invisible characters. At least Notepad ++ and VS Code display them correctly (in VS Code, the invisible character is slightly wider than ASCII characters), ”the experts explained.
However, some IDEs, including JetBrains WebStorm and PhpStorm, explicitly highlight these invisible characters, making it difficult to execute an attack.
The research team suggests limiting the use of Bidi Unicode characters, or banning the use of any non-ASCII characters altogether, to protect against such attacks.
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Security
Scissors undercut: Windows 11 vulnerability reveals sensitive information from screenshots, including deleted parts

A dangerous vulnerability has been discovered in one of the standard Windows 11 applications that could lead to the disclosure of sensitive information to the user. Moreover, at the moment the vulnerability is not closed and attackers can use it.
We are talking about the application Snipping Tool (Scissors). The vulnerability, called aCropalypse, allows you to undo changes made by a user when editing a screenshot, including cropped or blurred parts that hide sensitive data.
When you edit a screenshot, you can save it with the same name as the original file by overwriting it. However, as it turns out, the Windows 11 Snipping Tool does not remove the original information from the file, but simply leaves it added at the end, which is usually invisible to users. With some trickery, a potential attacker can extract hidden information from a file and see what information has been edited.
As you can see, edited screenshots are usually much larger due to the inclusion of information from the original image.
This is a pretty serious vulnerability. For example, if you share a screenshot of an order confirmation page on Amazon, it may contain an address, the same goes for credit card numbers and other sensitive data.
Security
In 2018, Google had an AI ready for a ChatGPT-style chatbot, but it was closed due to security issues.

In recent months, the ChatGPT chatbot has been on the news pages, and this has forced many companies to catch up with OpenAI. Among them are Microsoft, Google and a number of Chinese corporations. However, reportedly, the situation could be different.
As early as 2018, Google is said to have had a natural language processing AI similar to ChatGPT. However, company executives closed the project, considering it too dangerous. One of the developers was research engineer Daniel De Freitas, and Noam Shazeer, a software engineer at Google, also contributed to the project.
The project was called Meena and was a chatbot that could talk about different topics. With him you could discuss TV shows, have discussions about philosophy and joke. At the same time, the developers believed that this technology could be added to the search engine, however, in the end, Google stopped development. The company said the bot did not meet its AI security standards.
Note that later, on the basis of these developments, the LaMDA chat bot was created, which flies into the basis of Bard. Thus, the development nevertheless reached the mass user, albeit with a great delay.
Phones
Two-way satellite communications and military-grade security. Presented smartphone Motorola Defy 2

The British company Bullitt Group and Motorola, now owned by the Chinese Lenovo, introduced a new smartphone of the protected Motorola Defy series. The highlights of the Motorola Defy 2 are support for two-way satellite communication, combined with 5G fifth-generation cellular networks, and a very durable design.
The smartphone is resistant to dust, sand, dirt and water (IP68 and IP69K) and has been tested to military standard Mil-Spec 810H for extreme high and low temperatures, humid environments, salt fog, vibration and shock. The Motorola Defy 2 can be washed with soap and water and can also be cleaned with alcohol wipes.
The smartphone itself is equipped with a 6.6-inch Full HD + display with a refresh rate of 120 Hz, an 8 MP front camera, a main triple camera (50 MP, 8 and 2 MP), SoC MediaTek Dimensity 930, 6 GB of RAM and 128 GB flash memory that can be expanded with microSD cards, and a 5000 mAh battery with support for 15W charging and Qi wireless charging.
MediaTek Bullitt and 3GPP NTN technology, Bullitt satellite messaging service are supported. The smartphone is running Android 12 operating system, two major Android updates and 5 years of security updates are promised.
The Motorola Defy 2 smartphone will be available from Q2 2023 on select carriers in North America, Latin America and Canada starting at $599.
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