https://meltdownattack.com/
What do you do?Questions & Answers
Am I affected by the bug?
Most certainly, yes.
Can I detect if someone has exploited Meltdown or Spectre against me?
Probably not. The exploitation does not leave any traces in traditional log files.
Can my antivirus detect or block this attack?
While possible in theory, this is unlikely in practice. Unlike usual malware, Meltdown and Spectre are hard to distinguish from regular benign applications. However, your antivirus may detect malware which uses the attacks by comparing binaries after they become known.
What can be leaked?
If your system is affected, our proof-of-concept exploit can read the memory content of your computer. This may include passwords and sensitive data stored on the system.
Has Meltdown or Spectre been abused in the wild?
We don't know.
Run windows update. On windows 10 you want to check your windows update history and are most likely looking for KB4056892. On 8 you want KB4056898. On 7 you want KB4056897. If its not there check your anti-virus's website as some AV need to be updated before the fix goes in.
Linux or Mac, consult your whatever. If you're on the former you likely know what this is already and if you're on the latter you either also know how to update yourself or are better off waiting for your computer to do it for you.
This isn't a joke, the following video isn't a simulation, this is a real thing.
https://www.youtube.com/watch?v=RbHbFkh6eeE
