Apple, Google, Microsoft and other tech giants have released updates for a pair of serious security flaws present in most modern computers, smartphones, tablets and mobile devices. Here’s a brief rundown on the threat and what you can do to protect your devices.
At issue are two different vulnerabilities, dubbed “Meltdown” and “Spectre,” that were independently discovered and reported by security researchers at Cyberus Technology, Google, and the Graz University of Technology. The details behind these bugs are extraordinarily technical, but a Web site established to help explain the vulnerabilities sums them up well enough:
“These hardware bugs allow programs to steal data which is currently processed on the computer. While programs are typically not permitted to read data from other programs, a malicious program can exploit Meltdown and Spectre to get hold of secrets stored in the memory of other running programs. This might include your passwords stored in a password manager or browser, your personal photos, emails, instant messages and even business-critical documents.”
“Meltdown and Spectre work on personal computers, mobile devices, and in the cloud. Depending on the cloud provider’s infrastructure, it might be possible to steal data from other customers.”
The Meltdown bug affects every Intel processor shipped since 1995 (with the exception of Intel Itanium and Intel Atom before 2013), although researchers said the flaw could impact other chip makers. Spectre is a far more wide-ranging and troublesome flaw, impacting desktops, laptops, cloud servers and smartphones from a variety of vendors. However, according to Google researchers, Spectre also is considerably more difficult to exploit.
In short, if it has a computer chip in it, it’s likely affected by one or both of the flaws. For now, there don’t appear to be any signs that attackers are exploiting either to steal data from users.