A customer needs security proof before they will buy.
Give customers clear evidence that risks are understood and addressed.
External Attack Surface Management
See and reduce your cyber exposure
before attackers do.
PENTESYS Expose continuously discovers, validates and helps you resolve the security exposures attackers could exploit—so your team knows what matters most.
Built for enterprise. Trusted by security leaders worldwide.
TRUSTED BY LEADING ENTERPRISES
THE EXPOSURES ATTACKERS COUNT ON.
The problems security teams can't ignore.
Your board, insurer or regulator is asking harder questions.
Respond with independent evidence instead of relying on policies or assumptions.
New systems can expose assets you did not know were public.
Discover what is exposed across your external attack surface.
Testing once a year is no longer enough.
Add continuous visibility and testing as your environment changes.
A new application or release needs testing before launch.
Catch issues early and reduce launch risk.
You need evidence that an issue has been resolved.
Move beyond tickets with proof that the fix is real and stays fixed.
ILLUSTRATIVE CONTINUOUS VIEWEXPOSEYOUR SECURITY, ONE CLEAR VIEW
Good morning, Mathew.
assets need review
open findings
findings closed
Exposure trendLAST 90 DAYS
Next priorityHUMAN VERIFIED
Review unknown cloud assetOwner unassigned · seen 2h ago
Illustrative finding
74%ready to submit18controls complete4actions remaining9evidence items
Next action: confirm secure configuration evidence
1Critical3High7Medium8Closed
H
Broken access controlHuman verified · remediation assigned
M
Security header weaknessRetest scheduled
PRIMARY OBJECTIVETest access to sensitive data
Phishing simulationExternal intrusionPhysical accessCloud compromiseSocial engineeringPersistence testing
One clear view of the work
From “we found something” to “we know what to fix.”
Pentesys Expose brings automated discoveries and human-verified findings together. Your team can see the evidence, understand the priority, assign the fix and prove when the risk has been closed.
The Pentesys Portal is the hub for every Pentesys service, bringing AI-led discovery, agentic testing and experienced human judgement into one connected view. It supports Foundation, Validate and Adversary from the first assessment through to remediation and proof. Explore each service below.
- Manage Cyber Essentials readiness
- Define penetration testing scope
- Specify red-team engagements
- Human-verified findings
- Prioritised fixes, not another data feed
- A visible record of remediation
Your exposure may be changing faster than your testing.
The Pentesys Portal
ONE PLATFORM. MULTIPLE WAYS TO REDUCE EXPOSURE.
Start with the problem you need to solve, then use Pentesys to discover, validate and prove.Get Cyber
Essentials ready
Find the gaps and organise your evidence for a smooth Cyber Essentials journey.
See and prioritise
your external exposure
AI-powered discovery shows what is exposed across your external attack surface.
Prove what can
be exploited
Expert-led testing confirms what matters and explains how to fix it.
Pressure-test your
real-world defences
Adversary simulations replicate real attacker behaviour to test your defences.
Find your security priority in 2 minutes.
Answer 8 questions • Get your score • See your clearest next step
It’s quick, tailored to your business, and there’s no obligation.
How it works
Scan
Continuously search the open internet to find all assets and exposures—owned and unknown.
Identify
Expose presents each finding with risk rating and fix priority.
Prioritise
Risk is prioritised with business context, helping you focus on what matters most.
Fix
Guided remediation with clear ownership to close down risk, fast.
Prove
Executive-ready reporting demonstrates risk reduction and drives your risk narrative.
Trusted experience
Supporting recognised organisations.
Pentesys has continuously performed admirably during our collaboration, giving us faith in their knowledge. They delivered work that above our expectations by approaching each project with a deep understanding of our specifications. Their team demonstrated a remarkable degree of proficiency by effectively pinpointing weaknesses and offering practical suggestions to reduce possible hazards.
Unlike previous pentests that produced generic outputs, this engagement gave us clear, prioritised actions with real-world attack scenarios. The platform visibility into assets, vulnerabilities and remediation progress has helped us mature our security posture significantly. The team were professional, responsive, and genuinely cared about improving our security rather than just ticking a box.
The red team and external attack surface management work highlighted blind spots we didn't know existed. What stood out was the strategic guidance alongside the technical delivery – helping us shape a longer-term security roadmap rather than a one-off engagement. This felt like a partnership, not just a transactional assessment.
Pentesys has continuously produced excellent work. Their group demonstrated extraordinary technical proficiency by spotting crucial flaws and offering clever fixes that greatly strengthened our security stance. Their meticulous approach and attention to detail ensured that every facet of the project was covered in full.
We engaged Pentesys and the team for a complex penetration test and adversary simulation. The quality of the technical findings, realism of the attack paths, and clarity of reporting were outstanding. The recommendations were practical and mapped clearly to business risk, which made board-level conversations much easier. We've since built Pentesys into our ongoing security assurance programme.
Proven impact. Real results.
kainos
PENTESYS helped Kainos identify 78% fewer high-severity exposures, streamline fixing assets and reduce risk, month-on-month.
Read the full storyreduction in
critical exposures
validation accuracy
faster remediation
domains
continuously
monitored
ACCREDITED TO THE HIGHEST INDUSTRY STANDARDS
CREST member company
Pentesys has met CREST requirements for penetration testing in EMEA, demonstrating independently assessed technical and operational security-testing standards.
Cyber Essentials certified
Pentesys is Cyber Essentials certified across the whole organisation, showing that essential controls are in place to protect against common cyber threats.
CREST AI Charter signatory
A visible commitment to responsible, transparent and trustworthy use of AI within cyber security services.
CREST approved security testing
Independent assurance around the company standards, processes and technical capability supporting security-testing delivery.
Not ready to act yet?
Start with the question behind the technology.
01 · EXPLORE
What is External Attack Surface Management (EASM)?
A plain-language guide to finding and monitoring everything your organisation exposes online.
Read article ↗02 · UNDERSTANDHow often should a business run a penetration test?
Why annual testing is a useful baseline—and which changes should trigger earlier validation.
Read article ↗03 · ACTPenetration testing vs vulnerability scanning
Where automated breadth ends, where human validation begins and why a mature programme needs both.
Read article ↗Frequently asked questions
Clear answers about cyber exposure and security testing.
Start with the essentials, then explore the service that best fits your risk, assurance or testing requirement.
What is Continuous Threat Exposure Management (CTEM)?
Continuous Threat Exposure Management, or CTEM, is an ongoing approach to discovering potential exposures, deciding which ones create meaningful risk, validating them and tracking the required action. Unlike a one-off snapshot, CTEM helps organisations respond as systems, suppliers and attack paths change. See how Pentesys approaches CTEM.
What is the difference between attack-surface monitoring and penetration testing?
Attack-surface monitoring continually looks for externally visible assets and changes that may require attention. Penetration testing is a defined, authorised assessment in which security specialists actively test an agreed scope and verify exploitable weaknesses. Pentesys Expose supports continuous visibility, while Validate provides scoped penetration testing.
How often should a business carry out penetration testing?
The right frequency depends on risk, contractual requirements and how often the environment changes. Annual testing is a common baseline, but additional tests may be appropriate after major releases, infrastructure changes or significant new threats. Continuous monitoring can identify changes between scheduled tests, but it does not replace a properly scoped penetration test.
What does the Pentesys Portal provide?
The Pentesys Portal brings discoveries, human-verified findings, evidence, priorities and remediation progress into one view. Customers can also use it to manage Cyber Essentials readiness and define the scope of penetration tests and red-team engagements. Explore the Pentesys Portal.
Can Pentesys help us prepare for Cyber Essentials?
Yes. Pentesys Foundation helps organisations assess readiness, identify control and evidence gaps, assign actions and organise the information needed for a smoother Cyber Essentials journey. It is designed to clarify what your team needs to address before submission.
What will we receive after a penetration test or red-team engagement?
Deliverables are agreed during scoping and typically include the scope and methodology, verified findings, supporting evidence, risk priorities and practical remediation guidance. Red-team engagements also record the agreed objectives, simulated attack activity and observations about defensive performance. The exact engagement and total price are confirmed before testing begins.