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NotSoSecure

NotSoSecure Global Services Limited

United Kingdom

Penetration TestingOffensive SecurityManaged SecurityDetection & Response
Serves Enterprise
Profile last updated: August 13, 2026

About

NotSoSecure is a cybersecurity company based in United Kingdom working in penetration testing, offensive security, managed security +3 more.

NotSoSecure is the dedicated cybersecurity training division and global penetration testing practice of Claranet, a managed services provider. It delivers web, mobile, network, cloud and infrastructure penetration testing, red team exercises, social engineering assessments, continuous security testing and managed detection and response. It also runs hacking and defensive security training courses, including a long-running programme at Black Hat, and publishes open-source security tools and research. Its clients include large financial institutions, retailers and software businesses. Its testing is carried out by accredited penetration testers, with reports covering both technical and non-technical findings and remediation advice.

Location

United Kingdom

Legal name

NotSoSecure Global Services Limited

Focus areas

penetration testingred teamweb application securitymobile application securitycloud securitysecurity trainingBlack Hatmanaged detection and responseClaranet

Languages

EN

Services & products

Security domains

Penetration TestingOffensive SecurityManaged SecurityDetection & ResponseApplication SecurityCloud Security

How they deliver

Professional ServicesConsultingManaged ServicesTraining

Products

UDP Hunter

Network assessment tool

Open-source Python tool for UDP service scanning of IPv4 and IPv6 hosts, with probes for 19 services and guidance on exploiting discovered services.

Android Application Analyzer

Mobile application analysis tool

Tool for analysing the content of Android application data in local storage.

Customers

Enterprise

Industries served

FinanceRetailSoftware

Compliance & partners

Compliance frameworks

PCI DSS

Technology partners

Check Point

Credentials & affiliations

Certifications

PCI Qualified Security Assessor (QSA)

PCI Approved Scanning Vendor (ASV)

CREST accreditation

Cyber Essentials

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