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M&A Due-Diligence

Pre and Post-transaction cyber security validations to help you make better informed M&A decisions

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From cybersecurity angle, M&A transactions have been traditionally a matter of finance and to some level of IT unification post-transaction. When you are taking on another business, it also means taking on digital operations of a target entity. How can you trust these assets by merely looking at balance sheets and not looking at risk exposure of assets responsible for digital operations? Thorough compliance, including technical work, defines the accurate perspective. Unfortunately, tick-in-the-box is a larger vulnerability in your environment, exposing two businesses meant to be one.

Defendza's identification of risk affecting in-scope assets, the acquirer's counsel is better prepared to include risks, mitigations in the acquisition agreement that may or may not have directly associated cost. 

Why do you need M&A Due-Diligence?

Majority of the M&A transactions involve unification of assets to ensure seamless communication via digital assets. This unification of two different IT landscapes offer different threats; without this threat assessment, there's a lot at stake in case of potential vulnerabilities that could expose and lead to data breaches. The most recent high profile data breaches related to Yahoo/Verizon and Marriott/Starwood deals affecting millions of customers, and led to the devaluation of deals.

We have a dedicated security assessments FAQ section. Read it here.


At a high level, a M&A due diligence process contains the following phases:

Communication & Debrief

We take customer communication as seriously as reporting or assessment execution. We engage with customers during all stages, and ensure that customer contacts are up to date in the language they understand. Post engagement, a free debrief is conducted to help the customers understand the weaknesses and prepare a mitigation plan.


The assessment-execution phase is followed by the analysis & reporting. Defendza performs analysis on the testing output, evaluates the risk impact and likelihood of exploitation in realistic scenarios before providing action plans to remediate the identified risks. All our reports address business as well as the technical audience with supporting raw data, including mitigation measures at strategic and tactical levels. 


  • Assess high-value digital assets that include internal (corporate and production) and external  environments (exposed to the internet) to assess whether these are appropriate, below expectations or follow the defense-in-depth approach.
  • Evaluate security controls around communications and data exchange with third party, outsourced, or other business partnerships.
  • Identify any previous breaches, malware/cyber incident response processes to assess the attack preparedness of business.


Evaluate the current security initiatives (cybersecurity programs) around people, processes, and technology areas. 

Scope and Identify

  • Scoping considerations to ensure comprehensive review.
  • Identification of digital assets that should be part of the scope.

  • Evaluate the importance of these assets to the target business.

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Why Defendza ?

Thorough Analysis and Reporting

Our reports are comprehensive and include all the evidence that supports our findings. We give you a risk rating that considers how likely an attack is as well as the impact it could have. We don’t create panic scenarios. Our mitigation is detailed, covering both strategic and tactical areas to help our clients prepare a remediation plan.

Custom tools and scripts

Apart from the range of commercial and open source tools available for specific testing, our team has its own custom scripts for efficient testing. We provide accurate results to make sure our clients completely understand any vulnerabilities we report.

In-house experts

Our teams are led by veteran security consultants accredited by CREST standards for the last several years. Our experience shows that our clients are best served by giving them the right advice for their cyber security needs. We do not believe in spreading fear, uncertainty and doubt to generate more business.

Key Benefits

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"My experience to date with Defendza has been very positive, I look for a flexible, knowledable security "partner" when I engage a PT firm. Pentest means many things to many people and there are many different use cases for both the testing activity and the report generated and I need someone to work with me to get the absolute best value out of my security budget."

Information Security Officer
Insurance Group

Excellent people to work with. Very good knowledge of requirement and give us correct findings with excellent remedy to improve our security for our B2B portal site."

Head of Technical & Business Improvement
Leading Pharmaceutical Manufacturer

"I thought it was a highly professional and thorough exercise and I would have no hesitation recommending Defendza to any of my connections."

Director, Software Engineering
Global Information and Analytics Company

"Good personal service. We are delighted with the work Defendza did for us. Highly recommended."

Manchester headquartered Global Fashion Brand

"Extremely satisfied with approach, speed and end results. Thanks."

International fashion label and store

"My experience of the Defendza team was 5 star.  They were so helpful, and their technical delivery and client communication were excellent."

Director, Software Development
Corporate Services Company

"Harman was great, really knowledgeable, helpful and on hand to answer any questions. The final report was very clear providing the technical information in an easy to read format which could be understood by the leaders of the business. Really enjoyed working with Defendza and look forward to working with them again in the future. Thank you!

IT manager
Housing Trust


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