CHECK Green Light Penetration Testing

We are an independent information security consultancy, specialising in network and web application penetration testing. ReactionIS are a CESG CHECK green light member company.

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CESG CHECK scheme green light member company

We specialise in penetration testing

ReactionIS are experts in pen testing. That's what we focus on and that's what we do day in day out.

We are Independent

We are an unbiased, independent consultancy and we won't try to sell you anything else or recommend products that we make commission from.

Members of the CESG CHECK scheme

ReactionIS became a CESG CHECK 'green light' company in August 2011 after undergoing a rigorous assessment of our testing methodology, quality procedures and staff technical capabilities. As a CHECK green light company, ReactionIS are authorised by CESG to carry out penetration testing on systems processing protectively marked information up to and including CONFIDENTIAL level. CHECK companies can also satisfy the GSx CoCo and other regulatory requirements for annual IT health checks/penetration testing.

Certified Penetration Testing

We only employ the best talent in the UK. Our CREST/CHECK testers are amongst the most highly qualified testers in the UK carrying both CREST (Council of Registered Ethical Security Testers) Infrastructure and Application certifications (ICE and ACE) alongside CHECK Team Leader status.

The CHECK and CREST certifications are widely accepted to be the gold standards in the security industry and a mark of excellence and expertise in each of the chosen disciplines. Bearers of the CREST certifications are also entitled to become CHECK Team Leaders (subject to security clearance and employment by a CHECK member company). ReactionIS can offer CHECK Team Leaders and CREST Consultants in either network infrastructure or web applications.

Our testers are security cleared

Our CHECK team staff are all security cleared (up to DV (Developed Vetting) level).

We are Reliable and Trustworthy

We are an established information security business and we are trusted by our clients to protect their most critical information resources. We are not trying to just make a fast buck - we mostly develop long term relations with our clients.