Security Tool Comparison Tables

Research date: September 14–15, 2026. All pricing is list price or credible third-party range as of the dates cited. Enterprise security pricing is heavily negotiated and changes frequently — treat every number as an anchor for a conversation, not a quote.

Two caveats that apply to every product on this page

1. No tool is universally secure. Detection and protection results depend on configuration, tuning, policy mode (audit versus block), agent coverage, log-ingestion decisions, and the humans watching the console. MITRE itself stresses that its evaluations do not rank vendors, and Forrester's Allie Mellen warned that vendors claiming perfect scores may be running unrealistic configurations.

2. Tools need staffing. An unwatched EDR console, an untuned SIEM, and an unreviewed vulnerability report provide close to zero value. For organizations without 24/7 security staff, managed detection and response is the right purchase, not another product. Roughly 65% of organizations under 1,000 employees lack 24/7 SOC coverage.

1. Market context: what changed in 2024–2026

Consolidation reshaped the landscape. Verify current ownership before signing multi-year deals.

Independent testing is thinning. In the 2025 MITRE ATT&CK Enterprise Evaluations, published December 11, 2025, only eleven vendors participated: Acronis, AhnLab, CrowdStrike, Cyberani, Cybereason, Cynet, ESET, Sophos, Trend Micro, WatchGuard, and WithSecure. Microsoft, Palo Alto Networks, and SentinelOne declined, citing resource demands. The 2025 round emulated Scattered Spider — the first cloud-infrastructure scenario — and Mustang Panda. Several vendors claim 100% detection; treat all such marketing skeptically.

The operational lesson of the era: CrowdStrike's July 19, 2024 faulty content update crashed roughly 8.5 million Windows machines globally. It was not a breach, but it is the canonical demonstration that kernel-level security agents are themselves operational risk. Stage updates, use N-1 rings, and keep recovery runbooks — regardless of vendor.

2. Endpoint: EDR, XDR, antivirus

Consumer antivirus reality. Independent labs show the top ten consumer engines clustering near 99–100% on real-world protection tests; the differences are in false positives and performance impact. For most consumers, built-in Microsoft Defender plus automatic updates plus a password manager plus browser hygiene beats buying a suite.

Open-source alternatives: Wazuh (free SIEM/XDR with file-integrity monitoring, vulnerability detection, and agent telemetry; cloud version from ~$571/mo), osquery and Fleet for telemetry, Velociraptor for DFIR at scale, ClamAV for mail and file-server scanning. Practitioner consensus: excellent learning and compliance value, not a drop-in replacement for commercial EDR without dedicated staff.

3. Firewalls and NGFW

Open source: pfSense (Netgate) and OPNsense remain the standard free firewalls for labs and small business. They lack first-party TLS-inspection ecosystems and vendor SLAs; pair with Suricata or Zeek for detection.

4. Email security

Open source and free: Rspamd and SpamAssassin for self-hosted mail; Sublime Security's free tier for detection-as-code on M365 and Google. DMARC enforcement using free tooling remains the highest-ROI email control available.

5. Identity, MFA, and hardware keys

Open source: Keycloak (the de facto OSS IdP), Authentik, Authelia, Zitadel. Viable for engineering-led organizations, but you then own upgrades, high availability, and incident response for your own identity provider — a serious commitment.

Hardware keys. YubiKey 5 series roughly $50–$75; Security Key series (FIDO2-only) roughly $25–$29; Google Titan roughly $30–$35; Token2 and Nitrokey as cheaper and open-hardware alternatives. FIDO2/WebAuthn keys and passkeys are the only widely deployed phishing-resistant MFA. Buy two per user.

6. Privileged access management

7. Password managers

Context. The 2022 LastPass breach, in which encrypted vaults were exfiltrated and weak-iteration vaults were later cracked, remains the cautionary tale: vendor choice and master-password strength both matter. KeePassXC is the local-file option for individuals who refuse cloud sync.

8. SIEM

The most staffing-sensitive category in security. An untuned SIEM is an expensive log bucket.

Open source: Wazuh (free, SIEM plus XDR) and Security Onion (free distribution bundling Suricata, Zeek, and Elastic; 2.4.201 released January 2026 with version 3 rolling out). Every serious total-cost analysis reaches the same conclusion: free SIEM costs one or more engineers.

9. SOAR and automation

Twelve of the major vendors are quote-only; the exceptions are Tines (free community tier, then per-workflow pricing) and Shuffle (open source, free self-hosted). Leaders: Palo Alto Cortex XSOAR/XSIAM, Splunk SOAR, Tines, Torq, Swimlane. The trend is that standalone SOAR is dissolving into SIEM and XDR platforms and into general hyperautomation tools. Open source: Shuffle, n8n, StackStorm.

The reality check worth publishing: SOAR pays off only after detections are tuned. Automating a noisy SOC automates the noise.

10. Vulnerability scanning and patch management

Open source: OpenVAS / Greenbone Community Edition (free, capable, slower feeds than paid appliances), Nuclei (template-based, web-focused), OSV-Scanner (dependencies).

Patch management: Action1 is genuinely free for the first 200 endpoints; NinjaOne runs roughly $3–$5 per endpoint per month and is an MSP favorite; PDQ Deploy and Inventory are long-standing Windows-admin favorites; ManageEngine Patch Manager Plus is free up to 20–50 endpoints. Open source and built-in: WSUS, Ansible, unattended-upgrades, Chocolatey and winget scripting.

The honest framing: scanning is the easy part. Remediation SLAs and asset inventory are where programs fail. Prioritize KEV-listed vulnerabilities first.

11. WAF and API security

Open source WAF: ModSecurity (engine stewardship moved to OWASP) with the OWASP Core Rule Set; the modern successor Coraza; CrowdSec for collaborative blocking; BunkerWeb.

API security platforms: Salt Security, Akamai API Security (formerly Noname), Traceable (acquired by Harness in 2025), Cequence, 42Crunch. All quote-only, typically $30K+ per year entry. CNAPPs such as Wiz are absorbing API discovery. Open source: OWASP ZAP for API DAST, plus gateway schema validation.

12. Cloud, container, and Kubernetes security

Open source CSPM: Prowler, ScoutSuite, CloudSploit, Steampipe/Powerpipe benchmarks, Checkov for IaC. These cover posture checks well but do not provide attack-path graphs or runtime correlation.

Container and Kubernetes security is the strongest open-source category in this document: Trivy (the image and IaC scanning standard), Falco (CNCF-graduated runtime detection), Tetragon (eBPF), Kyverno and OPA Gatekeeper (policy), kube-bench and kube-hunter. A skilled platform team can build roughly 80% of a container-security program from open source; the commercial value is correlation, interface, and multi-cluster operations. Commercial: Wiz, Sysdig Secure, Aqua, Prisma, Upwind.

13. Application and dependency security

Open source: Semgrep OSS, CodeQL (free for open source), Trivy and Grype plus Syft for SCA and SBOM, OWASP ZAP and Nuclei for DAST, Gitleaks and TruffleHog for secrets, Dependency-Track for SBOM operations.

The adoption test: measure the false-positive rate in a pilot on your own code, not in a vendor demo. In this category, false positives decide whether developers use the tool or route around it.

14. DLP, MDM, and backup

DLP. Microsoft Purview DLP is included in E5 or the E5 Compliance add-on and is the default for M365 data. Forcepoint offers the deepest classifiers and regulatory templates at roughly $35–$60 per user per year; Netskope and Zscaler provide SSE-integrated DLP. There is no maintained full open-source DLP — honest advice for small organizations is to use the Purview or Google Workspace rules they already pay for. DLP is roughly 20% tool and 80% data classification; expect high false positives for six to twelve months.

MDM. Microsoft Intune at roughly $8/user/mo standalone and included in M365 Business Premium and E3; Jamf Pro at roughly $4–$10.50 per device per month for Apple-heavy fleets; JumpCloud for cross-OS SMB. Consensus: Jamf for Mac-heavy, Intune for Windows-first with some Macs. Open source: Fleet (osquery-based, open core), MicroMDM, Headwind MDM — all niche, since enrollment plumbing favors commercial tools.

Backup. Veeam Data Platform leads, sold per workload on quote, with third-party guides putting typical spend around $1–2K per year per ten VMs for Foundation and more for editions with malware detection and clean-restore features. Alternatives: Rubrik, Cohesity, Druva, Acronis, Datto. Open source: Restic, BorgBackup, Proxmox Backup Server, Bacula/Bareos, UrBackup.

The non-negotiables regardless of vendor: 3-2-1, immutability through object lock or a hardened repository, offline or out-of-band copies, and tested restores. Backup jobs that succeed nightly and were never restore-tested are the most common ransomware post-mortem finding.

15. Network security monitoring, threat intel, DFIR, awareness, GRC

NSM. Zeek for network metadata, Suricata for signature and anomaly detection, Wireshark for packet analysis. Security Onion packages all of these with Elastic into a free distribution, actively maintained (2.4.201, January 2026). Encryption limits payload inspection, so the value now is metadata, DNS, and east-west visibility — budget sensor hardware and an analyst or skip it.

Threat intelligence. Recorded Future (Mastercard) at roughly $60K–$150K+ per year entry, plus Mandiant/Google TI, CrowdStrike Falcon Intelligence, and Flashpoint. Open source and free: MISP (the sharing standard), OpenCTI (STIX-native, current momentum leader), abuse.ch feeds, AlienVault OTX, and the CISA KEV catalog and advisories. Small teams need curated, actionable intelligence far more than a platform.

DFIR. Velociraptor — free, open source, Rapid7-stewarded — is the single best force multiplier for a lean team doing endpoint forensics and hunting at scale. Autopsy and The Sleuth Kit for disk, KAPE for triage collection, Volatility 3 for memory. Commercial: Magnet Axiom, Cellebrite for mobile, Binalyze AIR — needed for court-grade mobile and eDiscovery workflows.

Security awareness. KnowBe4 leads at roughly $10–$30 per user per year by tier and volume; alternatives include Proofpoint SAT, Hoxhunt, SoSafe, usecure, and Curricula. Open source: GoPhish for phishing simulation plus free CISA and SANS materials. Evidence note: training measurably reduces click rates, but independent research on durable behavior change is mixed — pair it with phishing-resistant MFA.

GRC and compliance automation. Vanta and Drata for SOC 2 and ISO 27001 automation, with SMB entry around $10K–$25K per year and enterprise far higher; Secureframe and Sprinto are cheaper. Open source: eramba community edition, CISO Assistant. These compress audit preparation dramatically but do not replace the auditor's fee.

16. MDR and MSSP — the answer for small teams

If an organization cannot staff 24/7 eyes on glass — roughly, fewer than five dedicated security FTEs — buy MDR before buying more tools.

Pricing transparency is poor: only Huntress ($7.99 per endpoint per month at 100 endpoints, $8.99 at the 50-endpoint minimum) and Red Canary ($10 per endpoint per month via AWS Marketplace) publish rates. Working estimates: 100 endpoints roughly $4K–$30K per year; 1,000 endpoints roughly $96K–$300K per year. Other sources put organization-level MDR contracts at $50K–$300K+ annually for mid-size environments.

When buying MDR, the questions that matter are: will they contain, or only notify? Does coverage include cloud and identity, not just endpoints? What is the SLA on time-to-notify, in writing? Are detections portable if you leave? Who specifically will be on your account? MITRE runs managed-services evaluations too, and those are worth reading alongside vendor materials.

17. CISA free tools and services (US)

CISA maintains a catalog of no-cost services worth a dedicated page on any US-focused site:

• Cyber Hygiene Vulnerability Scanning — free continuous external scanning for US public and private critical-infrastructure organizations; CISA reports roughly 40% exposure reduction in the first year. Enroll via vulnerability@cisa.dhs.gov.
• The KEV catalog — the best free patch-prioritization signal in the industry.
• CSET (assessment tool), Logging Made Easy (Windows log collection for small organizations), Malcolm (network traffic analysis), Decider (ATT&CK mapping), Untitled Goose Tool (Azure and M365 incident triage), and the Tabletop Exercise Packages.

Caveat: CISA's 2025–26 budget and staffing turbulence has affected some program cadence; verify service availability at intake.

18. Cross-cutting guidance

A defensible stack order for a small organization: phishing-resistant MFA → patching (Action1's free tier covers 200 endpoints) → Microsoft 365 Business Premium or equivalent, which bundles Defender for Business, Intune, and Entra P1 → password manager → immutable, tested backups → MDR → then everything else.

An evidence hierarchy for product claims: MITRE ATT&CK Evaluations (read the raw results, not the press releases) > AV-Comparatives and AV-TEST > Gartner and Forrester positioning > peer reviews > vendor claims. Note that declining MITRE participation weakens the public evidence base specifically for Microsoft, Palo Alto, and SentinelOne — absence of data is not evidence of weakness, but it shifts the burden onto buyer-run proofs of concept.

Privacy and data handling. EDR, XDR, and SIEM tools ship endpoint telemetry to vendor clouds. Check data residency options — CrowdStrike, SentinelOne, and Microsoft all offer regional clouds, while Wazuh and Security Onion keep data on premises, which is a genuine open-source advantage for sovereignty-sensitive organizations. ESET's EU headquarters and self-hosted stacks are common answers to GDPR-driven requirements.

False positives are a cost center. Labs penalize them; in SAST the rate decides developer adoption; in SIEM and MDR, alert fidelity is the product. Pilot on your own environment and measure.

Every tool is a program. Budget 0.25 to 1.0 FTE per major console you operate, or consolidate onto a platform and accept concentration risk — which 2024–26 events (the CrowdStrike outage, Fortinet's exploit cadence, vendor breaches at Okta and BeyondTrust) show is real in both directions.

Appendix: open-source alternative map