The security hole exists for more than 3 years, but Intel has not been able to fix it. Photo: CIO Indeed, 3 years have passed, and there is still no end to the vulnerability. Meanwhile, experts from the University of Virginia and the University of California, San Diego, have discovered a new attack method that bypasses all current Specter protections built into the chip. This attack method has the potential to put almost any system – desktops, laptops, cloud servers and smartphones – once again at risk. Revealing Specter ushered in a wave of more powerful attacks, allowing malicious code to directly read passwords, encryption keys, and other valuable information from the computer’s kernel memory. Although chip manufacturers such as Intel, ARM and AMD already know this and combine defenses to reduce the threat from vulnerabilities, the methods have not yielded the desired effect. A Specter attack is capable of tricking the processor into executing instructions along a wrong path, the researchers say. Even though the processor recovers and completes its task correctly, hackers can still access confidential data while the processor goes in the wrong direction. The new attack method exploits what is called a micro-operator buffer (called micro-ops), an on-chip component that breaks machine instructions into simpler instructions and speeds up computation, like a secondary channel to reveal confidential information. Micro-op cache is built into Intel processors, manufactured since 2011. According to researchers at the University of Virginia, Intel’s defense proposal against Specter (called LFENCE) is to place sensitive code in a waiting area until security checks are done and only then the code Only sensitive is allowed to execute. However, research has shown how attackers can steal information through micro-op caching and use it as a secret channel. Although exploiting the Specter vulnerability is very difficult, the researchers say that with computers with a lot of sensitive data, hackers do not mind the difficulty. To protect the system from the new attack, the researchers propose to clear the micro-ops cache. This is a technical solution that comes at the expense of performance benefits. According to the researchers, micro-op caching has some dangerous effects. First, it ignores all caching reduction techniques such as side channels. Second, attacks in this zone go undetected like an existing attack or malware. Third, because the micro-op cache is at the front of the path, prior to execution, Intel’s Specter protections or recommendations to limit cache updates are still compromised. public.

Apple launches new purple iPhone and improved iPad Pro M1 During the Spring Loaded event taking place at 0:00 on April 21 (Vietnam time), Apple introduced a series of products including iPhone 12 purple version, new design iMac, AirTag card, iPad Pro M1. According to the CNET , rumors about headphones AirPods 3 appeared for a long time. Since mid-March, pages like DuanRui , 52Audio and Gizmochina uploaded an image of the actual AirPods 3, with a bare plastic earbud similar to the standard AirPods. Rumors say that the AirPods 3 are equipped with a new audio chip, longer battery life, no active noise canceling (ANC) to reduce the price. Image: PhoneArena . MacBook Pro 16 inch M1 is also the device to be expected, especially when the evaluation shows that the performance of the new processor on the 13-inch MacBook Pro and MacBook Air is superior to the Intel CPU version. According to the CNET , Apple is likely to “save” the 16-inch M1 MacBook Pro for WWDC 2021 event taking place in June, further upgrading the chip performance to suit this most powerful laptop. Image: Max Tech / YouTube . iMac M1 big screen . Last night, Apple surprised when launching 24-inch iMac with a new design, using M1 processor chip. However, this is just an upgrade to the basic 21.5-inch iMac lineup, while the 27-inch iMac option has yet to be updated. Image: Apple . iMac Pro M1 . The iMac Pro was discontinued in March causing many people to predict the upgrade of the product is coming soon. However, that didn’t happen during last night’s event. Similar to the 16-inch MacBook Pro, Apple could still launch the iMac Pro in another event with a more powerful M1 processor. Image: TechRadar . After the original HomePod was discontinued, rumors said Apple was on the rise Smart speaker with integrated screen to compete with the Amazon Echo Show and Google Nest Hub. Although not appearing at the event last night, the iPad Pro 2021 upgraded front camera, subject shifting feature is considered suggestions for smart screen devices, or smart speakers combined with iPad. Image: MacRumors . At the beginning of April, many sources said that Apple was developing Sound bar with Apple TV set-top-box . However, the product released last night is just the Apple TV 4K with an upgraded configuration and remote. Image: iMore . AR / VR glasses is also quite a rumored product. Not surprisingly, the device has not been revealed yet, but rumors say that users only need to wait 2 months to hear about Apple’s smart glasses. Image: Martin Hajek .