Google says it already deployed anti-Spectre and Meltdown solutions to protect its products, and users didn’t even notice. The downside of the patches companies are rolling out to fix the CPU vulnerabilities is that they have the potential to slow down systems. For the big G, that means slowdown for huge services like Gmail, Google Drive and Search and its Cloud products. Mountain View had to gather hundreds of engineers working across the company to find a way to protect its products. After a few months, they found a solution for Meltdown and the first variant of Spectre (two of the three vulnerabilities), which they then started rolling out way back in September. Google says it didn’t get any complaint reporting performance degradation after it deployed the fix.
Google details how it protected services like Gmail from Spectre