A group of hackers that has been trying to sell exploits and malware allegedly used by the U.S. National Security Agency decided to make the data available for free over the weekend.
The security community was expecting the password-encrypted archive that the Shadow Brokers group unlocked Saturday to contain previously unknown and unpatched exploits -- known in the industry as zero-days. That was not the case.
As researchers started to analyze the exploits inside, it became clear that while some of them were technically interesting, the large majority were for old and publicly known vulnerabilities. Some appeared to have actually been sourced from public information and affect software versions that are several years old.