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Spectre and Meltdown
Meltdown and Spectre, both have been identified together and affect the Processors / CPU (the chip inside the computer or phone). Since both are exploiting a weak process in the CPU, there is no easy fix apart from a software update. However, this is like putting plaster to avoid further damage. A year later, still there are sporadic reports for the infection. Real fix will come with next generation of processors, and only if the manufacturer wishes to do so.