What Are Cybersecurity Tools, and Why Are They Essential?
Here we cover a large array of security tools and provide examples of many security programs, devices, open-source security tools, and automated incident response tools for computers, networks, servers, websites, and infrastructure. We describe how to utilize each of the examples to protect computer systems from unauthorized access, disruptive use, information theft and information destruction. And in each of the security tool descriptions, we detail how the tool can monitor and respond to security incidents in real-time. For example, a security information tool is disruptively used to examine each packet of information traveling over a network. And an automated incident response tool can automatically begin to rectify a security compromise in real time as soon as it is detected by another security tool.
┌──────────────────────────────────────────────────────────────────────────┐
│ MODERN ENTERPRISE DEFENSE LAYER │
├───────────────────┬───────────────────┬───────────────────┬──────────────┤
│ Identity (IAM) │ Endpoints (EDR) │ Network (SIEM/IDS)│ Cloud (CSPM) │
│ Okta / Entra ID │ CrowdStrike Falcon│ Wireshark / Snort │ Wiz / Orca │
└───────────────────┴───────────────────┴───────────────────┴──────────────┘
We find that relying on basic perimeter defenses that react to events after they have occurred is failing. Modern attackers easily bypass defenses that rely on stolen credentials, unpatched software, and misconfigured cloud services. Security teams require the best security tools to gain real-time visibility to their entire digital footprint to detect and prevent zero-day attacks and to enforce a zero-trust access model to contain any damage that does occur as quickly as possible.
Core Categories in the Cyber Security Tools List
The cybersecurity tools list is organized around several core categories to help provide understanding to the wide range of different security functions and tools. Security teams don’t use one tool for all security functions—instead, they work to build out a security stack composed of best-of-breed security tools, all functioning together as an integrated system to help provide comprehensive security for an organization.
- Endpoint Detection & Response (EDR / XDR): EDR solutions continuously monitor and automatically contain threats on endpoints such as laptops, servers and mobile devices.
- Security Information & Event Management (SIEM): A collection of security-related information from various sources for the purpose of threat detection through the use of telemetry data and event correlation.
- Network Security & Packet Analyzers: Deep-packet inspection, traffic sniffing, and network intrusion detection systems (IDS).
- Vulnerability Scanners & Management: Tools to scan through servers and find missing patches, open ports and possible misconfigurations on servers.
- Identity & Access Management (IAM): Multi-factor authentication (MFA), single sign-on (SSO), role-based access control, etc. for secure identity & access management.
- Cloud Security Posture Management (CSPM) Tools: Cloud Security Posture Management (CSPM) tools identify risks, track cloud resource drift, and check for compliance in cloud-based infrastructure (e.g. AWS, Azure, and GCP).
- Penetration Testing & Exploitation Frameworks: Software that simulates an attack on a computer system to test how computer systems and networks could be vulnerable to a security breach by an attacker. These are typically used by ethical hackers for penetration testing, also known as penetration testing or white-hat hacking.
Comprehensive Breakdown: Best Cyber Security Tools by Category
Here is a more detailed list of the top cybersecurity tools that are most used today in the industry, organized by category of where they are used to operate.
1. Endpoint Detection and Response (EDR) & Antivirus
Firstly, Endpoints of entry for most corporate breaches are endpoints – laptops, servers, remote access using mobile devices. As such, EDR solutions monitor the behavior of endpoints as well as the processes that are running on them and the memory that those processes are using, and look for sign of malware and cyber attacks such as ransomware as well as fileless attacks that traditional file signature-based antivirus solutions fail to detect.
CrowdStrike Falcon
CrowdStrike Falcon is a leading popular cybersecurity solution to protect endpoints from cyber threats. The cloud-based platform is protected by a single, lightweight agent that enables Falcon to provide the highest level of security without impacting system performance. Utilizing AI, behavioral-based, and real-time telemetry data from endpoints, CrowdStrike Falcon detects and prevents all types of threats, including malware, fileless attacks, and even unauthorized access from valid credentials. In addition to prevention, the platform also gives security analysts of a Security Operations Center (SOC) real-time visibility to the active process tree of an endpoint under attack, allowing for immediate remote remediation, as well as sharing of threat intelligence to prevent similar breaches from occurring on other endpoints before a breach can establish lateral movement.
SentinelOne Singularity
SentinelOne delivers autonomous endpoint protection powered by on-device machine learning models. SentinelOne’s automated rollback for Windows environments is a particularly powerful feature that will recover from ransomware attacks by the automatic termination of the malicious process and then the restore of files to previous states using applicable shadow copies. This allows for the MTTR (mean time to remediate) for zero-day-type attacks to be dramatically reduced.
2. Network Security & Packet Analysis
Network security tools provide a means for security professionals to view the raw data flowing across networks, such as local area networks, cloud VPCs, and remote connections. This allows them to identify data exfiltration, unusual traffic, protocols, and even command-and-control (C2) traffic from threats such as advanced persistent threats (APTs).
Wireshark
Deep packet inspection is typically performed with tools like Wireshark. This open-source packet sniffer is an essential security tool. It can capture and analyze all network traffic on the local machine. The protocol can even be dissected down to the individual bits. The program is used by security engineers to investigate connection requests, troubleshoot encrypted handshakes, analyze communication patterns of malware command and control servers, and do post-incident analysis.
Snort
Cisco’s open-source Network Intrusion Detection and Prevention System (IDS/IPS) tool, Snort, is a rule-based Network Intrusion Detection and Prevention System (IDS/IPS) that uses pattern matching to check network traffic against known active attacks such as buffer overflows, stealth port scans, CGI attacks and OS fingerprinting attempts, among others. Snort can be configured to either raise an alert and log the packet that triggered the rule or to actively prevent an attack by dropping the malicious packet.
3. Vulnerability Scanning & Management
Attackers are constantly looking for unpatched software, open databases, and default credentials. In order to prevent such attacks, so-called vulnerability management tools are used. These automatically scan all internal as well as external IT assets for weaknesses.
┌──────────────────────────────────────────────────────────────────────────┐
│ VULNERABILITY MANAGEMENT LIFECYCLE │
├───────────────┬───────────────┬─────────────────┬────────────────────────┤
│ 1. Discover │ 2. Scan │ 3. Prioritize │ 4. Remediate & Verify │
│ Asset Discovery│ Nessus/Nmap │ Risk-Based Scoring│ Patching & Re-scan │
└───────────────┴───────────────┴─────────────────┴────────────────────────┤
Nessus Professional
Tenables Nessus Professional is one of the leading commercial solutions for vulnerability scanning and assessment. In terms of the size of the database of known issues (currently over 30,000 unique CVEs and growing daily), it is arguably the most comprehensive currently available. It is designed to scan and to test web servers and their applications, as well as general network infrastructure, including virtualized environments, for issues including missing patches, configuration issues and compliance failures. A key benefit of Nessus Professional is its ability to provide low numbers of false positives and to detail an extensive amount of information for each discovered issue, which can aid in the remediation of any found weaknesses to help protect against future attacks.
Nmap (Network Mapper)
Nmap is a free open-source application (by Seth Heffner and Fyodor) released under the OSI-approved open-source license, the GPL (GNU General Public License). It is used for network discovery, for creating a host map, or for checking the ports of your servers. Nmap sends raw IP packets to the networks or to the hosts you want to scan, and the answers are analyzed to determine what information about the target can be found. By using Nmap, you can find out, for example, which hosts are connected to your network, which services (like a web server or a mail server) are running on the hosts of your network, which operating system the hosts of your network are running, and which packet filtering firewall rules (like those from a router or a firewall) are in place on the networks and on the hosts of your network. Because of this, Nmap is very important for defensive attack surface management as well as for offensive reconnaissance.
4. Security Information and Event Management (SIEM)
The modern enterprise IT environment can easily have tens of millions of log events each day from endpoints, servers, firewalls, cloud services, etc. The ability to have all this information in one place to do real time event correlation and provide data for analytics to find the real threats hiding in the noise is why people use a Security Information and Event Management (SIEM) system.
Splunk Enterprise Security
Splunk Enterprise Security (ES) is one of the leading commercial SIEM solutions available on the market, and is designed for very large enterprise organizations. It can pull in log data from virtually any data source, and allows the analyst to write their own search queries to pull in the data they require. These search queries can also be saved as views, and then wrapped up in a dashboard for easier access to the required data. Also, correlation rules can be set up to automatically generate events when certain criteria are met. ES also uses machine learning to look for anomalies in behavior, as well as to identify possible insider threats and multi-phased attacks that other security solutions may have missed.
Microsoft Sentinel
Microsoft Sentinel: A Cloud-Native SIEM & Security Automation Solution. Built into Azure, Sentinel removes the need to manage and scale storage and infrastructure. It also supports the ingestion of millions of log events from a wide variety of data sources, including M365, Azure, AWS, and on-premise environments. With the power of AI in the core of Sentinel, combined with automated playbooks and responses, it enables the detection and response to of security threats in a matter of minutes, not hours or days.
5. Identity and Access Management (IAM)
Identity has quickly become the primary security perimeter in cloud architectures. IAM tools manage identity and access to resources, enforcing principles of least privilege and Zero Trust by only allowing authenticated and authorized users to access resources.
Okta Workforce Identity
Okta Workforce Identity is a cloud-first identity platform for workforce customers that provides Single Sign-On (SSO) for thousands of applications, adaptive Multi-Factor Authentication (MFA), and user provisioning, to name a few. Okta continuously evaluates hundreds of risk-based criteria to determine whether to allow access to applications on behalf of users. For example, Okta might grant access to a company’s HR portal from a user’s home computer but block access from a login in Asia from an unfamiliar device. Okta can also automatically provision and de-provision user accounts and groups for thousands of applications with the click of a button. This helps to keep up-to-date with the ever-changing IT landscape and automatically removes unused accounts that may have been compromised by credential stuffing or phishing attacks to grant access to critical business applications.
CyberArk Privileged Access Manager
While general Identity and Access Management (IAM) solutions are used to manage typical corporate user accounts and their accounts, privileged accounts such as administrative accounts, root SSH keys, database accounts and service accounts require a different approach to security. CyberArk provides a solution that isolates, monitors and controls privileged access credentials by storing them in a vault and allowing approved access on a just-in-time basis, requiring session recording and automatic password rotation to prevent abuse and privilege escalation in the event of a breach.
6. Cloud Security Posture Management (CSPM)
In recent years, as more and more workloads are being deployed to cloud platforms, such as AWS, Azure, and Google Cloud, perimeter-based security solutions have often found themselves struggling to keep up with rapid growth of new compute resources (i.e., containers) as well as corresponding shifts in the way infrastructure is provisioned and managed through the use of so-called ‘infrastructure-as-code’ (IaC) tools.
Wiz
Wiz has recently arrived to the market to transform cloud security by using an agentless approach to deploy across multi-cloud environments using native API integrations to the respective cloud platforms. It builds a unified cloud security graph that is able to identify complex risk scenarios, such as a publicly accessible and unpatched virtual machine that is connected to a highly privileged cloud role that contains sensitive data. Viewing the risk in graphical form helps security teams to understand the risk in attack form, rather than just listing out individual alerts that a user would have to manually investigate.
7. Penetration Testing & Ethical Hacking Frameworks
As an additional measure of testing a system’s security, Defenders must use the same techniques that a real-world adversary would use to test a system. This is typically done by security engineers using penetration testing suites to test and validate the organization’s security controls to see if they function as expected in the event of a real attack.
Metasploit Framework
The Metasploit Framework is an open-source and widely used penetration testing suite. It is also often used by penetration testers and ethical hackers from around the world. The Metasploit Framework has thousands of verified exploit payloads for documented software vulnerabilities. It is used for penetration testing, to check whether patches for vulnerabilities have been successfully applied or not, and to demonstrate realistic risks to stakeholders within organizations.
PortSwigger’s Burp Suite is one of the most commonly used web application security testing tools available. As an intercepting HTTP/HTTPS proxy, it can be used to view, amend and re-play web traffic as it travels between your browser and web application under test. Burp includes highly effective automated scanners as well as a suite of manual testing and verification tools designed to test for SQL injection, cross-site scripting (XSS), problems with authentication / login processes, and a wide array of other API related security vulnerabilities.
Kali Linux
Kali Linux is an open source, Debian-based Linux distribution providing over 600 free tools for information security professionals. It is the official distribution for penetration testing, used by security professionals around the world. Kali Linux is used for security testing, as well as by penetration testers and security researchers. Some of the included tools are Nmap, Metasploit, Burp Suite, Wireshark, Aircrack-ng, and John the Ripper. This Linux distribution can be used on a server or run from a USB flash drive or CD/DVD on a single workstation.
Comparison Table: Top Cybersecurity Tools Overview
This comparison table will help simplify your choice between various cybersecurity solutions. The table lists leading solutions by function, platform and target audience.
Tool Name
Core Category
Primary Deployment
Best Suited For
CrowdStrike Falcon
EDR / XDR
Cloud-Native / Agent
Enterprise Endpoint Protection
Wireshark
Packet Analyzer
Desktop Application
Network Traffic Forensics & Analysis
Nessus Professional
Vulnerability Scanner
On-Premise / Hybrid
IT Audits & Patch Management
Splunk ES
SIEM / Security Analytics
Cloud / On-Premise
Centralized Enterprise Log Management
Okta
Identity & Access (IAM)
Cloud SaaS
SSO, MFA, & Zero-Trust Enforcement
Wiz
Cloud Security (CSPM)
Agentless Cloud API
Multi-Cloud Risk & Graph Analysis
Metasploit
Exploitation Framework
CLI / Desktop
Offensive Security & Pen Testing
Burp Suite
Web Application Security
Desktop / Intercepting Proxy
Web App & API Security Audits
Open-Source vs. Commercial Security Tools: Making the Right Choice
The choice of whether to use open-source security software and commercial security solutions as part of an enterprise cybersecurity tools list is a strategic decision that depends on various criteria such as the enterprise’s budget, the amount of engineering power available, and compliance with regulations.
The Case for Open-Source Security Tools
Open-source security software including Wireshark, Snort, Nmap, and Kali Linux is a very flexible solution for any security task. Also, these tools are completely open-source, which means that you can view the complete code and there are no costs for a direct license. For teams of technical people, security specialists, security researchers, and startups (with small budgets) with a small number of employees who can set up, integrate, and update their software, open-source security software is the best choice.
While open-source solutions have all of the above-mentioned benefits, there are also some significant downfalls, most notably that there is no dedicated support available (e.g. SLA), and while some solutions are easier to configure than others, generally there is more work required.
The Case for Commercial Enterprise Tools
Most of the commercial cybersecurity solutions have a subscription fee but can provide turn-key automation, best support from the vendors, continuous updates of threat feeds, and also compliance reports in a ready-to-use format (e.g. CrowdStrike, Okta, Wiz etc.).
Key Decision Takeaway: Hybrid security models, which combine enterprise commercial production monitoring with open-source engineering tools for ad-hoc investigation and testing, are the typical security model of mature organizations.
Strategic Guide: How to Choose the Right Cyber Security Stack
powerful security tools can become useless if they are not used as part of a strategic security roadmap. Otherwise, they can lead to bloat, the introduction of redundant capabilities, and alert fatigue. When it comes to choosing the right security tools, here are some basics to get you started:
- Create a Roadmap: First, create a map of your entire environment. For example, do you have serverless applications in the cloud, on-premises servers, or even remote desktops? You can use a suite of production security monitoring tools that are optimized for your specific type of environment.
- Integration / API Support: A standalone tool is only useful when it keeps security data isolated in a proprietary silo. This type of tool does not add value in the long run. You should always check for API support / native connectors to your SIEM / security automation and orchestration tool.
- Understand the Skill Sets of Your IT Staff and Their Capacity to Manage Additional Security Tools: A complex security solution will only be as good as the people who configure and manage it. If you do not have a team of dedicated SOC engineers on staff, then you may want to look into a managed security service or look for security solutions that offer a high degree of automated remediation.
- Least Privilege: Ensure your IAM and access management tools enforce the Principle of Least Privilege by limiting the privileges users have to the minimum necessary to complete their job functions. This reduces your attack surface and helps prevent an incident from spreading should a user account be compromised.
- Start with Basic Defense Programs: When you have a security program from scratch, you start with EDR, IAM, and automated patch management. Later you can go for threat intelligence, pen testing, etc. special software and tools.
Got Questions? Here Are Some FAQs
1. What are the most essential cybersecurity tools for a small business?
For a small or growing business the bare essentials would be:
1. Strong Identity and Access Management (IAM) / Multi-Factor Authentication (MFA) such as Okta or Microsoft Entra ID, to protect login sessions.
Cloud- Cloud-Managed EDR (e.g., CrowdStrike or Defender) to protect employee devices.
Automated Patch Management & Scanning (e.g., Nessus or open-source Nmap) to close software vulnerabilities.
Email Security Gateway (ESG) to prevent e-mail-based threats such as phishing to arrive in users mail boxes.
2. Free / open source security tools like Wireshark, Snort and Nmap good enough for production?
Yes, there are many free and open-source security tools in use by global security teams, including Wireshark, Snort, and Nmap. The open-source community actively audit these tools for vulnerabilities, and the source code is available for public review. Be sure to always download the latest open-source security tool binaries from the official developer website(s) to avoid downloading compromised tool(s) from other locations.
3. What is the key difference between EDR and traditional AV?
Unlike traditional antivirus software that relies upon static file signature matching, EDR solutions are able to monitor activity such as behavior, memory, and network connections on endpoints. This type of monitoring enables security teams to not only detect threats but also respond to and contain active attacks before significant damage can occur.
4. How often should an enterprise run vulnerability scans on its network?
Scanning for vulnerabilities on your network should be an automated process. External scans for open vulnerabilities on the Internet facing side of your network should be done on a weekly basis or as needed after changes to your infrastructure. For the internal network, a full credentialed scan should be done on a monthly basis to ensure that any newly found vulnerabilities are being patched in a timely manner.
5. Can automated cybersecurity tools replace human analysts in the enterprise?
Note: This question is phrased as a yes or no question, and it was asked orally.
No. While there are many automated tools that can process large amounts of data quickly to detect malicious activity and reduce the noise that a human analyst has to sift through on a daily basis, the end analysis always has to be done by a human. This human analyst can process large amounts of data and make sense of it much faster than ever before. However, at the end of the day, there is business context that has to be taken into consideration. There are also cases where there is a lot of detailed forensic work that has to be done on a particular issue. These types of incidents are better handled by a human than by an automated program. In addition, during an incident, there are typically many changes that are made to the security system, and these have to be made by a human who understands how to configure the system to handle a particular set of risks. As a result, while automated security systems can do a lot of good, there is always going to be a need for human analysts to evaluate the output of these systems.
blog Links:
Do visit our channel to know more: SevenMentor
SevenMentor
Expert trainer and consultant at SevenMentor with years of industry experience. Passionate about sharing knowledge and empowering the next generation of tech leaders.