Wikipedia
Sucuri
For the snake, see Anaconda.
Sucuri is a globally distributed security company, focused on detecting and remediating compromised websites. Their technology is heavily used as an early warning system to detect malware, spam and other indicators of compromise on websites and DNS hijacking.
Sucuri offers a Website Antivirus and Firewall ( WAF) (CloudProxy), to protect sites from web attacks and DDoS.