Bro is now Zeek

Also remove the CriticalStack threat intel feed, as the provided link is offline.

README.md

@@ -87,10 +87,10 @@ Thanks to all [contributors](https://github.com/sbilly/awesome-security/graphs/c
 ### IDS / IPS / Host IDS / Host IPS
 
 - [Snort](https://www.snort.org/) - Snort is a free and open source network intrusion prevention system (NIPS) and network intrusion detection system (NIDS)created by Martin Roesch in 1998. Snort is now developed by Sourcefire, of which Roesch is the founder and CTO. In 2009, Snort entered InfoWorld's Open Source Hall of Fame as one of the "greatest [pieces of] open source software of all time".
-- [Bro](https://www.bro.org/) - Bro is a powerful network analysis framework that is much different from the typical IDS you may know.
+- [Zeek](https://zeek.org/) - Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.
 - [OSSEC](https://ossec.github.io/) - Comprehensive Open Source HIDS. Not for the faint of heart. Takes a bit to get your head around how it works. Performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response. It runs on most operating systems, including Linux, MacOS, Solaris, HP-UX, AIX and Windows. Plenty of reasonable documentation. Sweet spot is medium to large deployments.
 - [Suricata](http://suricata-ids.org/) - Suricata is a high performance Network IDS, IPS and Network Security Monitoring engine. Open Source and owned by a community run non-profit foundation, the Open Information Security Foundation (OISF). Suricata is developed by the OISF and its supporting vendors.
-- [Security Onion](http://blog.securityonion.net/) - Security Onion is a Linux distro for intrusion detection, network security monitoring, and log management. It's based on Ubuntu and contains Snort, Suricata, Bro, OSSEC, Sguil, Squert, Snorby, ELSA, Xplico, NetworkMiner, and many other security tools. The easy-to-use Setup wizard allows you to build an army of distributed sensors for your enterprise in minutes!
+- [Security Onion](http://blog.securityonion.net/) - Security Onion is a Linux distro for intrusion detection, network security monitoring, and log management. It's based on Ubuntu and contains Snort, Suricata, Zeek, OSSEC, Sguil, Squert, Snorby, ELSA, Xplico, NetworkMiner, and many other security tools. The easy-to-use Setup wizard allows you to build an army of distributed sensors for your enterprise in minutes!
 - [sshwatch](https://github.com/marshyski/sshwatch) - IPS for SSH similar to DenyHosts written in Python.  It also can gather information about attacker during the attack in a log.
 - [Stealth](https://fbb-git.github.io/stealth/) - File integrity checker that leaves virtually no sediment. Controller runs from another machine, which makes it hard for an attacker to know that the file system is being checked at defined pseudo random intervals over SSH. Highly recommended for small to medium deployments.
 - [AIEngine](https://bitbucket.org/camp0/aiengine) - AIEngine is a next generation interactive/programmable Python/Ruby/Java/Lua packet inspection engine with capabilities of learning without any human intervention, NIDS(Network Intrusion Detection System) functionality, DNS domain classification, network collector, network forensics and many others.
@@ -246,7 +246,6 @@ Thanks to all [contributors](https://github.com/sbilly/awesome-security/graphs/c
 - [virustotal](https://www.virustotal.com/) - VirusTotal, a subsidiary of Google, is a free online service that analyzes files and URLs enabling the identification of viruses, worms, trojans and other kinds of malicious content detected by antivirus engines and website scanners. At the same time, it may be used as a means to detect false positives, i.e. innocuous resources detected as malicious by one or more scanners.
 - [IntelMQ](https://github.com/certtools/intelmq/) - IntelMQ is a solution for CERTs for collecting and processing security feeds, pastebins, tweets using a message queue protocol. It's a community driven initiative called IHAP (Incident Handling Automation Project) which was conceptually designed by European CERTs during several InfoSec events. Its main goal is to give to incident responders an easy way to collect & process threat intelligence thus improving the incident handling processes of CERTs. [ENSIA Homepage](https://www.enisa.europa.eu/activities/cert/support/incident-handling-automation).
 - [CIFv2](https://github.com/csirtgadgets/massive-octo-spice) - CIF is a cyber threat intelligence management system. CIF allows you to combine known malicious threat information from many sources and use that information for identification (incident response), detection (IDS) and mitigation (null route).
-- [CriticalStack](https://intel.criticalstack.com/) - Free aggregated threat intel for the Bro network security monitoring platform.
 - [MISP - Open Source Threat Intelligence Platform ](https://www.misp-project.org/) - MISP threat sharing platform is a free and open source software helping information sharing of threat intelligence including cyber security indicators.  A threat intelligence platform for gathering, sharing, storing and correlating Indicators of Compromise of targeted attacks, threat intelligence, financial fraud information, vulnerability information or even counter-terrorism information. The MISP project includes software, common libraries ([taxonomies](https://www.misp-project.org/taxonomies.html), [threat-actors and various malware](https://www.misp-project.org/galaxy.html)), an extensive data model to share new information using [objects](https://www.misp-project.org/objects.html) and default [feeds](https://www.misp-project.org/feeds/).
 - [PhishStats](https://phishstats.info/) - Phishing Statistics with search for IP, domain and website title.