Persistent Security Industries vs qsa.sh
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 qsa.sh leads with 111 upvotes
Attack simulations that prove your defenses work
Persistent Security Industries offers the Nemesis BAS platform, a cutting-edge solution designed for security teams aiming to validate and strengthen their defenses. By simulating real-world attack scenarios, Nemesis BAS continuously tests security controls to ensure they are effective against evolving threats. This proactive approach helps organizations identify vulnerabilities before malicious actors do, making it ideal for cybersecurity professionals, IT teams, and CISOs committed to maintaining resilient security postures. What sets Nemesis BAS apart is its real-time, ongoing validation process, which provides actionable insights and confidence in security measures, rather than one-off assessments. Its user-friendly interface and automated attack simulations facilitate regular testing without significant manual effort, aligning with modern DevSecOps practices and compliance requirements.
Pros
- Continuous attack simulations provide ongoing validation of security controls
- Automated testing reduces manual effort and saves time
- Real-world attack scenarios increase the relevance of results
- Helps organizations proactively identify and fix vulnerabilities
- User-friendly interface suited for security teams of various sizes
Cons
- Limited information on pricing structure; likely tailored for enterprise budgets
- May require integration efforts with existing security infrastructure
- Potential learning curve for teams new to attack simulation tools
Best for
- • Regular security posture validation for enterprise organizations
- • Pre-deployment testing of new security controls
- • Compliance audits requiring proof of security effectiveness
- • Training security teams with realistic attack scenarios
Pricing: Typically, platforms like Nemesis BAS operate on a subscription-based model, potentially with tiered pricing depending on the size of the organization and scope of simulations. Exact pricing details are not publicly available, but it is likely aimed at mid to large enterprises with custom quotes.
External security scan of your own IP, in your terminal
qsa.sh is a powerful command-line tool designed for developers and security professionals to perform quick, comprehensive external security scans of their own servers. With a single curl command, users can instantly see what the internet perceives about their server—covering open ports, service versions, and known vulnerabilities—delivered directly to their terminal within approximately 30 seconds. Its integration of tools like naabu, nmap, vulners, and nuclei ensures a detailed mapping of potential security gaps without requiring any accounts or data storage. The platform caters to both free, live scans and premium options like the Pro plan, which scans all 65,535 ports asynchronously, and a one-time Deep scan that digs deeper into hidden vulnerabilities via email. Its straightforward approach makes it ideal for sysadmins, security teams, and developers seeking a quick, transparent security overview of their infrastructure.
Pros
- Instant, real-time security insights delivered directly in the terminal
- No account required and no data storage, ensuring privacy
- Combines multiple scanning tools for comprehensive vulnerability detection
- Flexible plans including free, Pro, and deep scans for different needs
- Fast scan times (~30 seconds) suitable for routine checks
Cons
- Limited depth in the free scan compared to paid options
- Requires command-line familiarity, which may be intimidating for non-technical users
- Potential false positives or overlooked vulnerabilities in quick scans
Best for
- • Quickly auditing server security before deployment
- • Regular external vulnerability checks for ongoing security posture
- • Preliminary scans prior to detailed penetration testing
- • Monitoring open ports and services on cloud or on-premise servers
Pricing: Likely operates on a freemium model with free live scans and paid plans offering more comprehensive, asynchronous, or one-time deep scans. Exact pricing details are not specified, but premium features probably start around a monthly fee.