In these times where a new major data breach occurs on a daily basis, it is important for the personal Internet user, corporations, and governments to stay aware of vulnerabilities that may affect their systems. Packet Storm provides around-the-clock information and tools in order to help mitigate both personal data and fiscal loss on a global scale. As new information surfaces, Packet Storm releases everything immediately through it's RSS feeds, Twitter, and Facebook. The site is referenced in over a hundred books and has a history of being spotlighted in the news.

Packet Storm has been a cornerstone on the Internet since 1998 and is visited monthly by over 190 countries. The site is meant to provide a unique service to everyone on the Internet - shedding full light on real security issues that may affect them. It is home to system administrators who need to keep their network up to date, security researchers who discover and report new findings, governments and corporations that need to understand current events, security vendors that want to develop new signatures for their software, and many others. Get involved and help secure the world.

RSS feeds: https://packetstormsecurity.com/feeds

Possibly one of the oldest threat intel sites out there.