https://arstechnica.com/information-technology/2018/01/the-impromptu-slack-war-room-where-net-companies-unite-to-fight-spectre-meltdown/

Meltdown and Spectre created something of a meltdown in the cloud computing world. And by translation, the flaws found in the processors at the heart of much of the world's computing infrastructure have had a direct or indirect effect on the interconnected services driving today's Internet. That is especially true for one variant of the Spectre vulnerability revealed abruptly by Google on January 3, since this particular vuln could allow malware running in one user's virtual machine or other "sandboxed" environment to read data from another—or, from the host server itself.