Best Trellix Intrusion Prevention System Alternatives in 2026
The top Trellix Intrusion Prevention System alternatives are Suricata, Palo Alto Networks Advanced Threat Prevention and Check Point Intrusion Prevention System (IPS): 15 intrusion detection and prevention software our editors would look at instead of Trellix Intrusion Prevention System, in our ranking order.
Trellix Intrusion Prevention System: A broad hybrid IPS for organizations needing inline blocking and malware defense. Where it falls short: requires a sales contact for pricing.
Switching from Trellix Intrusion Prevention System? For most intrusion detection and prevention software buyers the best Trellix Intrusion Prevention System alternative is Suricata, built for free open-source network IDS and IPS. On a budget, CrowdSec starts at $49/mo.
Why People Look for a Trellix Intrusion Prevention System Alternative
- Requires a sales contact for pricing
- Its broad feature set may exceed the needs of focused IPS deployments
- Centralized web management does not replace deployment planning across environments
Quick Picks by What You Need
- Best overallSuricata9.3
Free open-source network IDS and IPS
Visit Suricata - Lowest priceCrowdSec7.8
Paid plans from $49/mo
Visit CrowdSec - Best free optionSuricata9.3
Has a free plan
Visit Suricata
All 15 Trellix Intrusion Prevention System Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forFree open-source network IDS and IPS
- Better than Trellix Intrusion Prevention System:
- Editor score 9.3 vs 8.8
A capable free network IDS and IPS for teams prepared to manage self-hosted deployment.
- Inline blocking
- Encrypted traffic inspection
- Threat intelligence
9.3/10★★★★★Visit Suricata -
Best forAdvanced zero-day and exploit prevention
- Better than Trellix Intrusion Prevention System:
- Editor score 9.1 vs 8.8
A strong fit for Palo Alto environments needing inline zero-day and exploit prevention.
- Cloud workload support
- Inline blocking
- Encrypted traffic inspection
9.1/10★★★★★Visit Palo Alto -
Best forEnterprise IPS with mature threat prevention
- Better than Trellix Intrusion Prevention System:
- Editor score 8.9 vs 8.8
Enterprise IPS combining signature, behavioral, and virtual patching defenses.
- Cloud workload support
- Inline blocking
- Encrypted traffic inspection
8.9/10★★★★☆Visit Check Point -
Best forNetwork appliances with detailed IPS controls
A focused network IPS for appliance-based deployments and granular policy control.
- Inline blocking
- Encrypted traffic inspection
- Threat intelligence
8.6/10★★★★☆Visit AhnLab -
Best forAppliance-based network threat prevention
A broad appliance IPS for inline blocking, encrypted traffic inspection, and centralized control.
- Inline blocking
- Encrypted traffic inspection
- Threat intelligence
8.5/10★★★★☆Visit Hillstone -
Best forLinux teams seeking low-cost Snort-based detection
A low-cost Snort engine with inline blocking and flexible packet analysis.
- Inline blocking
- Encrypted traffic inspection
- Threat intelligence
8.4/10★★★★☆Visit Snort -
Best forOpen-source Suricata monitoring and hunting
A free Suricata stack for network detection, hunting, dashboards, and packet analysis.
- Inline blocking
- Encrypted traffic inspection
- Threat intelligence
8.3/10★★★★☆Visit SELKS -
Best forCloud IPS for distributed user traffic
A cloud IPS for distributed users with inline detection, TLS inspection, and security integrations.
- Inline blocking
- Encrypted traffic inspection
- Threat intelligence
8.2/10★★★★☆Visit Zscaler -
Best forHigh-capacity network security appliances
A high-capacity appliance combining inline prevention, inspection, and centralized security management.
- Inline blocking
- Encrypted traffic inspection
- Threat intelligence
8.0/10★★★★☆Visit Huawei -
Best forAffordable multi-scope detection with threat sharing
A multi-scope, open-source IDS/IPS with free detection and paid threat-intelligence options.
- Cloud workload support
- Inline blocking
- Threat intelligence
7.8/10★★★★☆Visit CrowdSec -
Best forStraightforward appliance IPS deployment
A focused appliance IPS with SSL inspection, virtual patching, and weekly signatures.
- Inline blocking
- Encrypted traffic inspection
7.6/10★★★★☆Visit Zyxel -
Best forUsage-priced IPS inside AWS networks
A usage-priced AWS firewall with deep inspection, TLS controls, and Suricata-compatible IPS rules.
7.5/10★★★★☆Visit site -
Best forAzure-native cloud IPS
A focused Azure-native IPS for traffic inspection, filtering, and centralized firewall management.
7.4/10★★★★☆Visit Microsoft -
Best forHybrid IPS with automation and cloud support
A hybrid firewall and IPS suite with cloud support, automation, and broad controls.
7.3/10★★★★☆Visit FortiGate -
Best forOpen-source firewall with integrated Suricata IPS
A free, open-source firewall with integrated Suricata intrusion detection and prevention.
7.2/10★★★★☆Visit OPNsense
Trellix Intrusion Prevention System Alternatives: Common Questions
What is the best alternative to Trellix Intrusion Prevention System?
Suricata: #1 in our Intrusion Detection and Prevention Software ranking, with an editor score of 9.3 out of 10. A capable free network IDS and IPS for teams prepared to manage self-hosted deployment.
Is there a free alternative to Trellix Intrusion Prevention System?
Yes. Suricata, Snort, SELKS, CrowdSec and OPNsense have a free plan or a free tier.
Why do people look for Trellix Intrusion Prevention System alternatives?
Requires a sales contact for pricing; Its broad feature set may exceed the needs of focused IPS deployments; Centralized web management does not replace deployment planning across environments.
How do I switch from Trellix Intrusion Prevention System?
Export your data from Trellix Intrusion Prevention System (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Trellix Intrusion Prevention System.
How to Switch from Trellix Intrusion Prevention System
- Export your data from Trellix Intrusion Prevention System (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel Trellix Intrusion Prevention System.
Trellix Intrusion Prevention System vs Each Alternative
| # | Tool | Free plan | Paid from | Deployment model | Network scope | Inline blocking | Encrypted traffic inspection | Score |
|---|---|---|---|---|---|---|---|---|
| 4 | Trellix Intrusion Prevention System | Hybrid | Multi-scope | Yes | Yes | 8.8 | ||
| 1 | Suricata | Yes | Free | Software | Network | Yes | Yes | 9.3 |
| 2 | Palo Alto Networks Advanced Threat Prevention | No | $0.009/GB usage-based | Hybrid | Multi-scope | Yes | Yes | 9.1 |
| 3 | Check Point Intrusion Prevention System (IPS) | Hybrid | Multi-scope | Yes | Yes | 8.9 | ||
| 4 | AhnLab AIPS | Appliance | Network | Yes | Yes | 8.6 | ||
| 5 | Hillstone Network Intrusion Prevention System | Appliance | Network | Yes | Yes | 8.5 | ||
| 6 | Snort | Yes | $29.99/device/yr | Software | Network | Yes | Yes | 8.4 |
| 7 | SELKS | Yes | Free | Software | Network | Yes | Yes | 8.3 |
| 8 | Zscaler Cloud IPS | Cloud | Network | Yes | Yes | 8.2 | ||
| 9 | Huawei HiSecEngine USG6800G | Appliance | Network | Yes | Yes | 8.0 | ||
| 10 | CrowdSec | Yes | $49/mo | Hybrid | Multi-scope | Yes | 7.8 | |
| 11 | Zyxel Intrusion Prevention System | Appliance | Network | Yes | Yes | 7.6 | ||
| 12 | AWS Network Firewall | No | $0.07/GB usage-based | Cloud | 7.5 | |||
| 13 | Azure Firewall Premium | No | Cloud | 7.4 | ||||
| 14 | FortiGate | No | Hybrid | 7.3 | ||||
| 15 | OPNsense | Yes | Hybrid | 7.2 |
Head-to-Head
- Trellix Intrusion Prevention System vs Suricata
- Trellix Intrusion Prevention System vs Palo Alto Networks Advanced Threat Prevention
- Trellix Intrusion Prevention System vs Check Point Intrusion Prevention System (IPS)
- Trellix Intrusion Prevention System vs AhnLab AIPS
- Trellix Intrusion Prevention System vs Hillstone Network Intrusion Prevention System
- Trellix Intrusion Prevention System vs Snort
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update