Worse Than Heartbleed? Meet ShellShock: A New Security Threat For OS X and Linux
MakeUseOf
12 min read · Apr 15, 2026
By downloading this free guide, you agree to receive regular updates on the latest cool apps, product reviews, and giveaways from MakeUseOf. A serious security issue with the Bash shell – a major component of both most UNIX-like operating systems – has been discovered, with significant implications for computer security worldwide. The issue is present in all versions of the Bash scripting language up to version 4.3, which affects a majority of Linux machines, and the entirety of computers running OS X. Curious about how it works and how to protect yourself? Read on for more information.
Access Full Briefing
This research is reserved for our professional network. Enter your work details below to access the full PDF report.