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About ProCheckUp21 years of expertise

ProCheckUp is a London-based independent provider of cyber security services, including IT Security, Assurance, Compliance and Incident Response. We commenced offering Penetration Testing and Compliance services in 1999, and have since developed a wider portfolio of enterprise-wide security and consulting services to help customers comprehensively handle the information security challenges of today.


Penetration testing

Penetration testing

Identifying risk and formulating a robust security strategy


ProCheckUp work with merchants and vendors to assist on their journey to PCI DSS compliance


Does your organization need immediate assistance for a possible incident?


On 25 May 2018 GDPR will come into effect, is your organisation ready?


ProCheckUp blogs

Tuesday, March 24, 2020 by Edd Jones

COVID-19 Scams

The current outbreak of COVID-19 has created a perfect storm for scammers to monetise through fear, false promises and fraud. Since the beginning of March 2020, more than 13,000 new domains have been registered using the terms “corona”, “covid”, “epidemic”, “pandemic“ and “Wuhan”. While some of thes ...

Thursday, March 19, 2020 by ProCheckUp

Coronavirus Outbreak

Coronavirus (Covid-19) has now become prevalent right across Europe and the UK. Therefore, The risk for the UK is now at a considerable level and appropriate steps and planning needs to be considered in the event of further escalation. ProCheckUp is committed to the safety of its employees and custo ...

Monday, March 9, 2020 by David Shanahan

Dead Security Tech: Browser XSS filters

Whenever the subject of Cross-Site Scripting (XSS) remediation strategies arise, somebody invariably mentions browsers having inbuilt XSS filters that mitigates the vulnerability class. Whilst most testers I meet are comfortable with XSS, its exploitation, and its remediation; they lack knowledge of ...

Incident Response Information and Assistance

Since 2001, ProCheckUp, has conducted incident response investigations across all industries, organization sizes, and technical environments. If your organization needs immediate assistance for a possible incident or security breach please contact us by completing the form on the right or calling us at one of our incident response lines listed below. You can also email our incident response team at

Once we receive your request, a ProCheckUp consultant will contact you to discuss your inquiry.