https://www.cnet.com/news/intel-discloses-new-variant-on-spectre-meltdown-security-flaws/

Intel and Microsoft on Monday disclosed a new variant of the Spectre and Meltdown security flaws, revealing a newly found vulnerability in chips used in hundreds of millions of computers and mobile devices. 

Intel is calling the new strain "Variant 4." While this latest variant taps into many of the same security vulnerabilities that were first revealed in January, it uses a different method to extract sensitive information, according to the company.