https://www.techradar.com/news/intels-cpus-with-baked-in-spectre-defenses-could-still-be-haunted-by-new-variant

Remember the Meltdown and Spectre fixes that Intel is baking into its processors to make them bulletproof to these vulnerabilities at a silicon level, and which are expected to be incorporated into new CPUs that ship later this year? Well, it’s allegedly the case that those countermeasures won’t defend these chips against a new freshly-discovered Spectre flaw.

Earlier this week came the official revelation that there is a fresh strain of Spectre – Variant 4, known as Speculative Store Bypass – which leverages similar vulnerabilities to the existing variants, although Intel noted it uses a different method to crack into the sensitive data held in your computer’s memory.