CastleRAT and CastleLoader, active since March 2025, spread malware via phishing and GitHub repos, enabling data theft.

Python 3.3 standard library 'ipaddress' suffers from a critical IP address vulnerability (CVE-2021-29921) identical to the flaw that was reported in the "netmask" library earlier this year.

I'm currently converting a whole lot of IP address data from some quite ghastly flat files.Ghastliness aside, I'm trying to sort out a way to check each IP listed to check if it's a subnet address ...

Hacking groups are now likely to be more careful when using dynamic DNS providers and rely more on hacking websites and direct IP address changes to manage their command-and-control infrastructure ...