Best LLM Vulnerabilities in 2026

garak is an open-source LLM vulnerability scanner, with dozens of plugins and thousands of prompts that test large language model security.

Key garak features:

Open-source and free Comprehensive vulnerability probes Extensible framework Supports multiple LLM backends

AxCrypt is a powerful, easy-to-use encryption tool that protects your files, passwords, and personal information with strong AES-256 security. Available on Windows, Mac, Android, and iOS, it keeps your data safe wherever you go. .

Key Axcrypt features:

Strong Encryption User-Friendly Interface Cloud Storage Integration Key Sharing

Try for free Open Source freemium

Easily ensure your website/application security by checking vulnerabilities.

Key DragonSec.io features:

Surface vulnerability scanning Port scanning Subdomain discovery Compliance & Reporting

freemium $19 / Monthly (Up to 1 targets/apps)

Snyk helps you use open source and stay secure. Continuously find and fix vulnerabilities for npm, Maven, NuGet, RubyGems, PyPI and much more.

Key Snyk features:

Ease of Use Comprehensive Vulnerability Database Automated Fixes CI/CD Integration

Open Source

All-in-one website scanner: finds security vulnerabilities and audits your SEO and AI-search (GEO) readiness in one scan. Detects backdoors, exposed files, weak SSL/TLS — with a full PDF report and a built-in ISO 27001 ISMS.

Key Vulny.app features:

GEO SEO Security

Automated AI security testing for agents, chatbots, and APIs. Find prompt injection, data leaks, and unsafe behavior before launch.

Key PromptBrake features:

AI Security Testing Supported Targets CI Release Gates Self-Hosted Execution

Try for free paid Free Trial $499 / Monthly (Enterprise: 30 scans, 1 active runner license)