---
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=2026-06-29+09%3A14%3A45+-0500&secure%5Bsession_id%5D=2287fe33-c72a-43e5-978f-ff84e2bd1906&secure%5Btoken%5D=c21c7f7b8f94bfef133fa30deca4958f8a53ada52ad78c99e9a91ea2c079952b&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 (238 reviews)
  - [Picus Security](https://www.g2.com/products/picus-security/reviews) - 4.8/5.0 (229 reviews)
  - [Pentera](https://www.g2.com/products/pentera/reviews) - 4.5/5.0 (169 reviews)