New vulnerabilities can be used by motivated hackers to leak privileged information data from an area of the memory that hardware safeguards deem off-limits. The newly discovered flaws could allow attackers to directly steal user-level, as well as system-level secrets from CPU buffers, including user keys, passwords, and disk encryption keys. Intel has now released Microcode Updates (MCU) updates to fix the vulnerabilities in the latest Intel processors that impacts all modern chips, including the chips used in Apple devices.
Source: https://thehackernews.com/2019/05/intel-processor-vulnerabilities.html