Apple M1 Processor | Breaking Cybersecurity News | The Hacker News

A novel hardware attack dubbed  PACMAN  has been demonstrated against Apple's M1 processor chipsets, potentially arming a malicious actor with the capability to gain arbitrary code execution on macOS systems. It leverages "speculative execution attacks to bypass an important memory protection mechanism, ARM Pointer Authentication, a security feature that is used to enforce pointer integrity," MIT researchers Joseph Ravichandran, Weon Taek Na, Jay Lang, and Mengjia Yan  said  in a new paper. What's more concerning is that "while the hardware mechanisms used by PACMAN cannot be patched with software features, memory corruption bugs can be," the researchers added. The vulnerability is rooted in pointer authentication codes ( PACs ), a line of defense introduced in arm64e architecture that aims to detect and secure against unexpected changes to  pointers  — objects that reference an address location in memory. PACs aim to solve a common problem in software...

Days after the  first malware  targeting Apple M1 chips was discovered in the wild, researchers have disclosed yet another previously undetected piece of malicious software that was found in about 30,000 Macs running Intel x86_64 and the iPhone maker's M1 processors. However, the ultimate goal of the operation remains something of a conundrum, what with the lack of a next-stage or final payload leaving researchers unsure of its distribution timeline and whether the threat is just under active development. Calling the malware "Silver Sparrow," cybersecurity firm Red Canary said it identified two different versions of the malware — one compiled only for Intel x86_64 and uploaded to VirusTotal on August 31, 2020 ( version 1 ), and a second variant submitted to the database on January 22 that's compatible with both Intel x86_64 and M1 ARM64 architectures ( version 2 ). Adding to the mystery, the x86_64 binary, upon execution, simply displays the message "Hello, ...

Given Okta's role as a critical part of identity infrastructure, strengthening Okta security is essential. This article covers six key Okta security settings that provide a strong starting point, along with recommendations for implementing continuous monitoring of your Okta security posture. With over 18,000 customers, Okta serves as the cornerstone of identity governance and security for organizations worldwide. However, this prominence has made it a prime target for cybercriminals who seek access to valuable corporate identities, applications, and sensitive data. Recently, Okta warned its customers of an increase in phishing social engineering attempts to impersonate Okta support personnel. Given Okta's role as a critical part of identity infrastructure, strengthening Okta security is essential. This article covers six key Okta security settings that provide a strong starting point, along with how continuous monitoring of your Okta security posture helps you avoid miscon...