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Post-M&A Integration Assessment

Updated over 5 months ago

Service Overview

This service provides a post-M&A integration cybersecurity assessment aimed at identifying the weakest security points in the newly formed attack surface following infrastructure integration. The objective is to analyze the root causes of identified vulnerabilities and provide cost-effective mitigation recommendations and a risk reduction plan.


Methodology

The assessment is executed in multiple stages using an internal grey-box approach. CYE receives access to the network as a standard employee and attempts to escalate privileges toward predefined targets. The assessment location is pre-selected to ensure value - such as a site containing a data center or R&D team.

Access is granted via remote VPN or a jump box provided by the assessed organization.

The assessment includes the following activities:

  • Offline information gathering

  • Threat modeling (including identification of key assets and threat sources)

  • Interviews with the technical team

  • Security operations assessment (monitoring, incident response, crisis management)

  • IT infrastructure and network architecture review, including segmentation and firewall rules

  • Internet connectivity strategy, internet perimeter and exposed services assessment

  • Endpoints, mobile, servers, and network equipment policy and configuration assessment

  • Sensitive data and privacy management

  • Identity management and remote access assessment

  • Results summary and analysis

  • Report construction


Deliverables

The final report includes:

  • Executive Summary

    • Overview of activity and results

    • Infrastructure state analysis

    • Graphical representation of security evaluation per security domain

    • Comparison graph against industry benchmarks

    • Security strengths

    • Key areas for improvement

    • Attacker achievements

  • Methodology

  • Results Summary

    • Prioritized asset and threat source lists

    • Main attack scenarios

    • Consequences and impact

    • Detailed list of identified vulnerabilities by risk level

  • Initial recommendations for short-term and long-term mitigation


Prerequisites

The following items are required before starting the assessment:

  • Designated point of contact from the assessed company

  • Definition of crown jewels and their IP addresses

  • Assessment restrictions (e.g., forbidden assets or activities)

  • Two sets of domain/user credentials

  • VPN or remote access and endpoints for internal testing


Customer Engagement

This activity involves limited disruption to the organization, with most work conducted remotely and coordinated with the internal point of contact.


Relevant Standards

  • MITRE ATT&CK's knowledge base of adversary tactics and techniques

  • NIST Cybersecurity Framework

  • Center for Internet Security (CIS) Critical Security Controls


Security Domains Covered

  • Cross-organization policies, procedures, and governance

  • Security operations, monitoring, and incident response

  • Servers, network equipment, and endpoints security

  • Sensitive data and information management

  • Identity management and remote access

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