Posts tagged security.
Introducing Substrate: An Open Format for Validator Threat Intelligence
Validator threat intelligence has no shared format. We're publishing a bundle spec, a ten-family taxonomy, and seeding a 1,092-bundle corpus to fix that.
We Scanned 5,700 [Solana, Eth, Sui, Atom] Validators. Here's What We Found.
NullRabbit scanned 5,715 validator hosts across Solana and Sui, running 10,139 scans and identifying 1,340 CVE findings across 155 hosts. Here's what the validator attack surface actually looks like.
No One Really Knows What's Hitting Their Infrastructure
I ran a SYN flood against my own server and watched every log file I could find. Nothing. Not a single line. Here's why Linux won't tell you about scans - and the tools that actually will.
XDP Inline Defense for Validators: Kernel-Level Protection at Line Rate
Validator nodes face constant exposure. This deep dive explains how NullRabbit Guard uses eBPF and XDP to enforce security directly inside the NIC driver, dropping scans and abnormal traffic at line rate before they reach the kernel or your node.
XDP: The Kernel-Level Powerhouse Behind Modern Network Defense
A deep dive into eXpress Data Path (XDP), how it hooks into the Linux kernel at the earliest stage of packet processing, and why it's becoming the foundation for next-gen network security and observability.
10 Open-Source Security Tools Every Validator Operator Should Run
Protect your validator or RPC node with these ten open-source tools. From port scanners to intrusion prevention, here's the ultimate DIY stack for decentralized infrastructure security.
