What is penetration testing and does your business need it?
Penetration testing is an authorised, simulated attack that finds security weaknesses before criminals do. Here is how it works and when you need it.
25 October 2026 · 2 min read · BrightExa Tech
Penetration testing (a "pen test") is an authorised, simulated attack on your website, app or network by security experts. The goal is to find weaknesses before real attackers do, and to give you a clear plan to fix them.
How a penetration test works
- Agree the scope — which systems can be tested, when and how, in writing
- Gather information about the systems in scope
- Test for weaknesses such as weak logins, outdated software or insecure settings
- Safely confirm which weaknesses are real
- Report the findings with clear priorities and how to fix them
- Re-test after fixes are made
A legitimate test always has written permission from the owner of the systems.
Types of penetration tests
- Web application — your website, portal or online store
- Mobile app — Android and iPhone apps and their servers
- Network — office network, Wi-Fi, firewalls and servers
- Cloud — settings in your cloud hosting
What you get
A report that explains each issue in plain language, how serious it is, and step-by-step fixes — plus a technical section for your developers.
Does your business need one?
Consider a penetration test if you:
- Take online payments or store customer data
- Are launching a new app, portal or online store
- Work with clients who ask about your security
- Have had a security incident before
Start with the basics in our website security checklist.
Frequently asked questions
### Is penetration testing the same as hacking? It uses similar techniques but is legal, authorised and done to protect you.
### How often should we test? Commonly once a year and after major changes.
Want a security check? See our cybersecurity service or request a free quote.
Need help with Cybersecurity & Ethical Hacking?
Tell us what you need and get a free quote with a fixed price.
