

Security
Vulnerabilities in Matrix Clients Allow Encryption Key Hijacking
To exploit vulnerabilities to read encrypted messages, you first need to gain control of the recipient’s account.
Developers of the open-source Matrix instant messaging protocol have disclosed details of vulnerabilities (CVE-2021-40823 and CVE-2021-40824) affecting a range of Matrix clients, including Element (web / desktop / Android), FluffyChat, Nheko, Cinny and SchildiChat … The issue does not affect Element on iOS.
As the developers explained, under certain circumstances, an attacker can force vulnerable clients to issue encryption keys for messages previously sent by this client to the user whose account has been compromised.
To exploit vulnerabilities to read encrypted messages, an attacker first needs to gain control of the recipient’s account. This requires either directly compromising his credentials or the home server.
In other words, users in encrypted rooms with malicious servers are at greatest risk. Administrators of malicious servers can impersonate users’ devices and intercept messages sent by vulnerable clients in this room.
The vulnerabilities do not affect the Matrix and Olm / Megolm protocols or the libolm implementation. The issue is an implementation bug in certain Matrix and SDK clients that support end-to-end encryption.
There is no information about the exploitation of vulnerabilities in real attacks. The problems were discovered by Element researcher Denis Kazak during an internal audit.
Hotfixes have already been released for affected clients and users are strongly encouraged to install them. If the upgrade is temporarily impossible, it is recommended that vulnerable clients not be connected to the Network if possible.
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Electric Cars
Hackers hacked Tesla twice, for which they received 350 thousand dollars and Tesla Model 3

As part of Pwn2Own’s Vancouver-based commercial vulnerability finding event, a French team called Synacktiv managed to hack into Tesla systems twice.
On the first day, Synacktiv successfully performed a TOCTOU (Time-of-check to time-of-use) attack on the Tesla Gateway, and the group was rewarded with a $100,000 cash reward and a Tesla Model 3 car. And the next day hackers broke into the Tesla infotainment system, and received another 250 thousand dollars for this.
The Tesla cybersecurity team is already analyzing the actions of hackers in order to eliminate the vulnerabilities found with a firmware update.
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.
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