A few months ago, computer users worldwide were shocked when it was discovered that their systems could be vulnerable to two hardware level security vulnerabilities called Spectre and Meltdown. Intel and AMD rushed to patch the firmware on the affected processors, but it appears that the ghost has returned to haunt Intel in the form of Spectre Variant 4.
Ignoring the spooky pun, the news is alarming. A joint research done by Microsoft and Google says that the new variants are called 3A and 4.
To fix these bugs, Intel has released microcode updates to OEMs in a beta form. These mitigations however come at a cost, not financial of course, but in terms of performance. [...]