CrowdSec Security Engine
Local detection, global remediation
Real-time detection of suspicious traffic & behavior
CrowdSec Security Engine, the open-source intrusion prevention system written in Go, protects against attacks on any server by parsing real-time service logs (servers, SSH, WordPress etc. logs) by detecting malicious behaviors.
- A variety of scenarios to detect attacks: bruteforce, HTTP attacks, scans, L7 DDOS, website scalping/scrapping etc.
- Compatible with most OS (Linux/BSD/Windows), all popular servers (Nginx, Apache, Traefik, Caddy etc.), container-type setups
- Can be used at the application level with WordPress, Magento, or any PHP or Python-based website
Our bouncer blocks cyberattacks
CrowdSec Security Engine comes with a remediation component, called "bouncer", to act on identified threats. The bouncer interfaces with firewalls to ban or block nefarious IPs. It will also consume the community blocklist to preventively block IPs that have been shared by CrowdSec users.
- Compatible with most firewalls (Iptables, Nftables), application firewalls (Cloudflare, AWS WAF) or dedicated OS (OPNSense)
- Decoupled from the detection mechanism for flexible setups where detection is done on one machine, while remediation is achieved on other machines
- Customizable. Custom bouncers can be created to execute any script, depending on your use case
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Community-fueled blocklist
CrowdSec uses the power of the crowd to maintain and distribute IP blocklists to preventively block intrusions. Based on the gathered behavior patterns, the service can assess the reputation of an IP address in real time.
- Our curation mechanism ensures the reliability of the blocklists sent back to users. Combining a trust rank mechanism, behavior, our own honeypot network and a whitelist, the consensus engine ensures blocklists contain only "shoot-on-sight" IP addresses.
- IP threat level is evaluated in stream processing, based on sightings from the CrowdSec network
- This highly dynamic system ensures that blocklists contain no false positives or poisoning attempts, allowing your IPS to focus on really dangerous IPs.
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Open source since day 1
Open-sourcing the CrowdSec Security Engine is critical to guarantee full transparency, quality and reliability to our users, while offering the community the opportunity to contribute at the code base.
- Open-sourced under the MIT license, the most permissive in the world
- We welcome contributions from the community whether it is to enhance the code base of the CrowdSec Security Engine or to create new attack detection scenarios, bouncers or ports on new platforms.
- The CrowdSec Hub centralizes all detection scenarios, bouncers or collections developed by the CrowdSec team and the community. Check it out for the latest updates!
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How the CrowdSec Security Engine works
CrowdSec Security Engine key features
Real-time decision management
Complete real-time decision management within the console with the Polling API.
Auditd Support
It allows you to detect "Post Exploitation Behaviors"
AWS Cloudtrail Scenarios
Detect and better understand what is happening on your cloud.
CAPI Allow list
Create allow lists that also apply to the community blocklist.
Detection Engine Improvements
Experience increased efficiency with faster response times for high-volume log processing and a decrease in required processing power.
Feature Flag Support
Try all new beta features by activating manually features disabled by default.
Kubernetes Audit Acquisition
Monitor and protect your whole K8s cluster, not just the services running on it.
New Blocklist API and Premium Blocklists
Subscribe to at least 2 CrowdSec blocklists in addition to the community fuelled blocklists.
Why use our Security Engine
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Reduce intrusions by 90%
By using CrowdSec Security Engine, users noticed a 90% drop in intrusion attempts on their online services, due to the community blocklist containing a curated list of aggressive IPs.
Eliminate alert fatigue with 0 false positive
By preventively blocking aggressive IPs, and Internet background noise, SOC teams and security analysts can focus on alerts that matter.
Seamless setup
CrowdSec Security Engine was developed to fit the needs of modern IT setups. Working with all popular server OS, containers, servers and applications, the Security Engine is easy to set up and integrates effortlessly with your CI/CD process.
CrowdSec Security Engine in few figures
48M+
Rogue IPs in the CTI database
40K
"Shoot-in-sight" IPs in the blocklist
13M
Signals/day received from the community
64K+
Machines contributing to the CTI
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Why use our Security Engine
Reduce intrusions by 90%
By using CrowdSec Security Engine, users noticed a 90% drop in intrusion attempts on their online services, due to the community blocklist containing a curated list of aggressive IPs.
Eliminate alert fatigue with 0 false positive
By preventively blocking aggressive IPs, and Internet background noise, SOC teams and security analysts can focus on alerts that matter.
Seamless setup
CrowdSec Security Engine was developed to fit the needs of modern IT setups. Working with all popular server OS, containers, servers and applications, the Security Engine is easy to set up and integrates effortlessly with your CI/CD process.
Run the Agent effectively on multiple platforms
OS
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Services
Data sources
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Platforms
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Discover how companies are using our CTI
Get started with CrowdSec today
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