Port 0 is supposed to be the port nobody uses. This afternoon I opened a live chat session on it from a cloud server, watched the handshake in a packet capture, and said hello to a room full of strangers. It took about fifteen minutes. The spark was a great write-up by acidvegas called The Port That Does Not Exist, which scanned the entire IPv4 internet for anything answering on port 0. The short version is that a lot of things answer, and some of them really shouldn't. I wan

What this is A ThinkLogical Secure Console Server (SCS) is a rack-mounted serial aggregator. You plug servers, routers, switches, and other devices into its serial ports, and then access those devices' console ports remotely over SSH. Think of it as a central hub for out-of-band management. The SCS320 model supports 32 serial ports. Thinklogical made many different models with various serial ports available, including modular power supplies and a slew of very interesting othe

Today I stumbled across something that blew my mind, and I’ve been in IT long enough to think I’d seen some stuff. I was documenting some...

The Prisma Access Browser changes the way businesses think about secure access. Instead of tunneling traffic and relying on invasive SSL...

DNS4EU says it is about securing the most basic function of how the internet works. DNS translates the names of websites into IP...

Conference Date(s) Location Link FutureCon Denver Cybersecurity Conference July 24, 2025 DoubleTree by Hilton Denver Tech Center (hybrid)...

Every year, companies pour thousands into extended support contracts, spare part stockpiles, and band-aid warranties for hardware that...

DNS is not just a lookup service. It is a fully functional, often completely exposed, communication channel that most enterprises still...