<p>➀ ETH Zurich researchers identified a new class of vulnerabilities (BPRC) in Intel processors, exploiting speculative execution to breach privilege barriers between CPU users and access cached/RAM data;</p><p>➁ The flaw affects all Intel processors since 2018, particularly threatening cloud environments where hardware resources are shared, enabling attackers to read up to 5,000 bytes per second of others' memory;</p><p>➂ Intel has implemented mitigations via microcode updates, but the discovery highlights fundamental architectural risks in speculative technologies requiring ongoing security patches.</p>