Penetration Testing | Winchester
Penetration Testing for Winchester Firms
Penetration testing in Winchester by real testers, not just scanners. We try your firewall, remote access, Wi-Fi, website and Microsoft 365 sign-ins as an intruder would, then rank the fixes.
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Penetration testing explained
What a Penetration Test Is and When You Need One
Penetration testing means asking someone to break into your systems on purpose, under a signed agreement, before a criminal tries it for real. Our tester works on your internet connection, remote access, website, Wi-Fi and user accounts with attackers' own tools. A scan suggests where flaws might be; a pen test shows which ones open a door.
It suits Winchester offices on the High Street, in Winnall and around Bar End that hold client records, take payments online, offer visitor Wi-Fi or are preparing for Cyber Essentials Plus.
Common findings on a first test
- Remote desktop open to the internet, guarded only by a weak password
- A website plugin that has missed updates and leaks data to a crafted request
- Visitor Wi-Fi that can see the same network as the office file server
- An insurer or client asking for test evidence you cannot yet supply
What we test
Penetration Testing Services Sized for Winchester Businesses
A scanner produces a long list of maybes. Our testers confirm which issues are genuinely exploitable and explain each fix in plain English, ordered by the harm it could do.
External infrastructure tests
From outside, we probe your firewall, VPN, remote desktop gateways, mail services and public IP addresses, just as an attacker scouting for targets would.
Internal and Wi-Fi tests
On site, we connect to your office network, try staff and visitor Wi-Fi and see how far one infected PC could travel.
Website and portal tests
Your website, enquiry forms and client portals are checked for injection flaws, weak sign-in and leaked data.
Clear, ranked reporting
Every issue comes with a risk rating, screenshots of the evidence and the fix. Directors get a short summary; your IT people get the detail.
Retesting after your fixes
Once the work is done, we go back over those findings to confirm each one is closed, so you have evidence to show clients.
The difference
Before and After a Pen Test at a Winchester Office
Security holes rarely announce themselves, and nobody spots them until someone goes looking on purpose. Here is how typical findings look before testing and after the retest.
| Exposure | Found in testing | Confirmed at retest |
|---|---|---|
| Remote access | VPN firmware with a publicly known weakness. | Rated critical, patched first, then checked again. |
| Web forms | One form shows details that belong to other users. | Form repaired, retested and confirmed for clients. |
| Admin accounts | One shared admin password on every machine. | A separate admin password for each, all behind MFA. |
| Guest Wi-Fi | Visitors can reach the office file server. | Guest network separated and the split tested. |
The process
From Scope to Retest: How a Test Runs
Everything starts with a written scope stating what will be tested, on which dates and with which techniques. We schedule the work around your Winchester office hours, keep you posted while it runs and stop immediately if anything starts to affect live systems or the people using them.
Scope: agree targets and limits
Together we list the IP addresses, websites, premises and accounts in scope, fix the dates and rules of engagement, and confirm it all in writing.
Test: try the weak points
Automated vulnerability scanning shortlists likely flaws. A tester then works through each one by hand to see how deep a genuine intruder could get.
Report: sort by risk
The written report scores each finding, includes the evidence and lists the steps to close it. We then walk through it on a call with your directors and the person or company that manages your IT.
Retest, then test yearly
We retest after your changes to prove they hold. Testing once a year, and again after any major IT change, keeps the picture accurate.
Common questions
Penetration Testing FAQs for Winchester Businesses
What decides the cost of a pen test?
The scope does. We look at how many public IP addresses, websites, sites and user accounts are involved, and whether you need an internal test on site as well as an external one. You receive a written quote before any dates are booked, and it stays the same once testing begins.
Can a vulnerability scan replace a pen test?
No. A scan is automated and reports known weaknesses, along with a fair number of false positives. During a pen test a person confirms which issues are genuine, links them together and shows what an attacker would gain. Scans are worth running between tests, but they are no substitute.
Could testing interrupt our staff or systems?
It is not meant to. We agree the testing windows with you, ask permission before trying anything risky on live systems and halt straight away if a service is affected. Most of your team will never notice the test happening.
How does this relate to Cyber Essentials Plus?
No. Cyber Essentials Plus is an audit carried out by a certified assessor. A pen test goes further, and fixing what it finds makes that audit easier.
What happens if you find something serious?
We tell you on the day rather than leaving it for the report. If a flaw puts data at immediate risk, we explain a temporary fix and can make the change ourselves, then carry on with the rest of the agreed scope. To talk it through, call 01962 353 206.
How often should we test?
Once a year is a sensible baseline, with an extra test after big changes such as a new firewall, a new website, an office move or a move to the cloud. Some contracts and insurance policies set their own timetable, so check yours.
Do you test businesses outside the city centre?
Yes. We test businesses in Kings Worthy, Alresford, Twyford, Romsey, Eastleigh and Chandlers Ford. External tests run remotely; internal tests happen at your premises.
Get in touch
Book a Winchester Penetration Test
Let us know what you want tested, from a single website to several offices, and we will scope it and quote in writing. Call 01962 353 206, email hello@winchesteritsupport.uk or use the form; replies normally come within the hour.
Contact us