Didn't one of the main OpenBSD maintainers suggest this like 10-15 years ago?<p>Unable to find it.<p>edit : <a href="https://en.wikipedia.org/wiki/Hyper-threading#Security" rel="nofollow">https://en.wikipedia.org/wiki/Hyper-threading#Security</a><p>"In May 2005, Colin Percival demonstrated that a malicious thread on a Pentium 4 can use a timing attack to monitor the memory access patterns of another thread with which it shares a cache, allowing the theft of cryptographic information."