Updated 7:30 PM ET: Researchers have now disclosed two new exploits that impact virtually all modern processors from ARM, Intel, and AMD. Microsoft has also issued an emergency patch for Windows users.
Initial reports suggested that the security flaw, which reportedly would allow attackers to access sensitive information such as passwords and files cached on a disk, affects Intel processors released over the past 10 years. However, in its response, Intel says that the issue isn't unique to Intel products, and the company is working with other vendors on a solution. From Intel:
Intel also used its response to push back on the idea that forthcoming fixes will have a "significant" impact on performance.
For its part, ARM has confirmed in a statement to Fortune that it is working with Intel and AMD on mitigating the attack. Further, the ARM spokesperson stressed that "this is not an architectural flaw; this method only works if a certain type of malicious code is already running on a device and could at worst result in small pieces of data being accessed from privileged memory."
AMD also confirmed to Fortune that its chips were affected by some related security exploits, but the company pressed that "due to differences in AMD's architecture, we believe there is a near zero risk to AMD processors at this time."
You can read Intel's full response below:
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