Yeah, but we have practically usable variants of meltdown and spectre.
the only reason its not useful to deploy them is due to a massive amount of herd immunity (and the fact you consume a lot of CPU when trying the attack making it clear - bad combo for an attacker)
the only reason its not useful to deploy them is due to a massive amount of herd immunity (and the fact you consume a lot of CPU when trying the attack making it clear - bad combo for an attacker)