Ubuntu and some other Linux distributions suffer from a severe privilege escalation vulnerability that could allow a local attacker or a malicious program to obtain root privileges and total control over the targeted system.

It's not just your processor and operating system that are affected by the Meltdown and Spectre memory vulnerabilities -- your graphics card is, too. To that end, NVIDIA has detailed how its GPUs are affected by the speculative execution attacks and has started releasing updated drivers that tackle the issue. All its GeForce, Quadro, NVS, Tesla and GRID chips appear to be safe from Meltdown (aka variant 3 of the attacks), but are definitely susceptible to at least one version of Spectre (variant 1) and "potentially affected" by the other (variant 2). The new software mitigates the first Spectre flaw, but NVIDIA is promising future mitigations as well as eventual updates to address the second.

Researchers from security firm Duo Labs analysed over 73,000 Macs systems and discovered that a surprising number of Apple Mac computers either fails to install patches for EFI firmware vulnerabilities or doesn't receive any update at all.

Symantec on Wednesday revealed a new campaign of attacks by a group it is calling Dragonfly 2.0, which it says targeted dozens of energy companies in the spring and summer of this year. In more than 20 cases, Symantec says the hackers successfully gained access to the target companies’ networks

A team of security researchers from China's Zhejiang University have discovered a clever way of activating your voice recognition systems without speaking a word by exploiting a security vulnerability that is apparently common across all major voice assistants.

Dubbed **DolphinAttack**, the attack technique works by feeding the AI assistants commands in ultrasonic frequencies, which are too high for humans to hear but are perfectly audible to the microphones on your smart devices.