---
title: NeSSi2 Reviews
meta_title: 'NeSSi2 Reviews 2026: Details, Pricing, & Features | G2'
meta_description: Filter reviews by the users' company size, role or industry to find
  out how NeSSi2 works for a business like yours.
date_modified: '2024-10-06'
parent_category:
  name: System Security
  url: https://www.g2.com/categories/system-security
---


# NeSSi2 Reviews
**Vendor:** NeSSi2  
**Category:** [Breach and Attack Simulation (BAS) Software](https://www.g2.com/categories/breach-and-attack-simulation-bas)
## About NeSSi2
NeSSi² is an open source project developed at the DAI-Labor and sponsored by Deutsche Telekom Laboratories. NeSSi (Network Security Simulator) is a novel network simulation tool which incorporates a variety of features relevant to network security distinguishing it from general-purpose network simulators. Its capabilities such as profile-based automated attack generation, traffic analysis and support for the detection algorithm plugins allow it to be used for security research and evaluation purposes.






- [View NeSSi2 pricing details and edition comparison](https://www.g2.com/products/nessi2/reviews?section=pricing&secure%5Bexpires_at%5D=2026-08-15+18%3A23%3A13+-0500&secure%5Bsession_id%5D=dcec23ca-0caf-4095-899e-314ea2e7a55a&secure%5Btoken%5D=a7af47cad34990f14571f9d2ffb85e62cf1dcbb60073c36779b058a7cc3d2b56&format=llm_user)

## NeSSi2 Features
**Simulation**
- Test Agent Deployment
- Breach Simulation
- Attack Simulation
- Resolution Guidance

**Customization**
- Multi-Vector Assessment
- Scenario Customization
- Range of Attack Types

**Administration**
- Reporting
- Risk Evaluation
- Automated Testing

## Top NeSSi2 Alternatives
  - [vPenTest](https://www.g2.com/products/vpentest/reviews) - 4.6/5.0 (243 reviews)
  - [Picus Security](https://www.g2.com/products/picus-security/reviews) - 4.8/5.0 (229 reviews)
  - [Cymulate](https://www.g2.com/products/cymulate/reviews) - 4.9/5.0 (176 reviews)