9 posts tagged ‘Processors’
SysBumps Attack
mjtsai,
Guru Baran (via Ric Ford, PDF): The research team from Korea University, led by Hyerean Jang, Taehun Kim, and Youngjoo Shin, presented their findings in a paper titled “SysBumps: Exploiting Speculative Execution in System Calls for Breaking KASLR in macOS for Apple Silicon.” Their work represents the first successful KASLR break attack on macOS systems […]
Pat Gelsinger Out at Intel
CNBC (MacRumors, Hacker News): Intel ousted CEO Pat Gelsinger over the weekend, capping a tumultuous nearly four-year tenure at what was America’s leading semiconductor company before its stock price and market share collapsed. The company announced Gelsinger’s resignation Monday morning, which a person familiar with the matter said came after a contentious board meeting last […]
Why % CPU in Activity Monitor Isn’t What You Think
Howard Oakley: When macOS loads two of those E cores with low QoS threads, it sets them to run at a low frequency to make the most of their energy efficiency. When it loads two E cores with threads that were intended to be run on P cores, as they have a high QoS, it […]
Apple M4 Pro and M4 Max
Apple (Hacker News, MacRumors): All three chips are built using industry-leading, second-generation 3-nanometer technology, which improves performance and power efficiency. The CPUs across the M4 family feature the world’s fastest CPU core, delivering the industry’s best single-threaded performance, and dramatically faster multithreaded performance. The GPUs build on the breakthrough graphics architecture introduced in the previous […]
Autoenshittification, YouTube, and Disenshittify or Die
Cory Doctorow (July 2023, Hacker News): Forget F1: the only car race that matters now is the race to turn your car into a digital extraction machine, a high-speed inkjet printer on wheels, stealing your private data as it picks your pocket.[…]The car manufacturers got so desperate for chips that they started buying up washing […]
Operation Triangulation Details
Dan Goodin (Hacker News): Researchers on Wednesday presented intriguing new findings surrounding an attack that over four years backdoored dozens if not thousands of iPhones, many of which belonged to employees of Moscow-based security firm Kaspersky. Chief among the discoveries: the unknown attackers were able to achieve an unprecedented level of access by exploiting a […]
Dave Cutler Interview
Dave Plummer (via Hacker News): Dave Cutler is a seminal figure in computer science, renowned for his contributions to operating systems. Born in 1942, he played pivotal roles in the development of several OSes, most notably VMS for Digital Equipment Corporation (DEC) and Windows NT for Microsoft. Cutler’s design principles emphasize performance, reliability, and scalability. […]
iLeakage: Browser-Based Timerless Speculative Execution Attacks on Apple Devices
Jason Kim et al. (Hacker News): We present iLeakage, a transient execution side channel targeting the Safari web browser present on Macs, iPads and iPhones. iLeakage shows that the Spectre attack is still relevant and exploitable, even after nearly 6 years of effort to mitigate it since its discovery. We show how an attacker can […]