Attack and Penetration Testing Services Identify and remediate vulnerabilities to protect critical assets Protiviti is the expert in attack and penetration services, helping organisations uncover vulnerabilities, strengthen defenses and reduce the risk of costly breaches. Protiviti’s attack and penetration services protect sensitive data and systems, helping to avoid costly breaches, intellectual property loss, business disruption and reputation damage. With the expanding threat landscape, it is critical to understand security vulnerabilities, their root causes and remediation options.Using our advanced vulnerability assessment penetration testing expertise, we identify vulnerabilities and provide actionable remediation guidance. Assuming an “attacker mindset” to replicate any scenario, we leverage best-in-class commercial security tools, leading freeware, the top open-source tools and the latest pen testing techniques.Whether it’s applications, services, databases, the Internet of Things (IoT), and mobile devices, whether on-premise or in the cloud, Protiviti’s pen testing services in Bulgaria provide assurance that your organisation is protected. Our services safeguard your data, intellectual property, or reputation due to a data breach Our attack and penetration services Pro Briefcase Red team and adversary simulation Simulate real-world threats and attacks targeting the resources, technology, and processes that secure systems while simultaneously assessing an organisation's ability to identify, detect, and respond to threats. Pro Building office Application and software security Whether customised or off-the-shelf, we identify security vulnerabilities and conduct vulnerability assessment activities in the design and deployment of business-critical web, mobile, and thick-client applications. Pro Document Consent Network penetration testing Our network penetration testing services identify critical network and infrastructure vulnerabilities, misconfigurations, and weaknesses that an attacker could leverage or exploit. Pro Document Files Social engineering Simulating a bad actor, we identify vulnerabilities by using physical, electronic, and telephonic methods to target employees and facilities, gaining access to data and networks supported by selective vulnerability testing techniques. Pro Document Stack Cybersecurity M&A due diligence Gain a deeper understanding of the cybersecurity maturity of an acquisition target, pre- or post-acquisition. Pro Legal Briefcase Ransomware advisory and recovery Anticipate and map the threat landscape, react to a motivated and cunning adversary, and recover and adapt to maintain a resilient business model. Integrating threat intelligence, we are aiming to holistically understand risk Our innovative approach to vulnerability assessment and penetration testing Our innovative methodology is led by threat intelligence, and it centers around holistically understanding risk to the organisation. Our comprehensive approach to performing cybersecurity assessments goes beyond merely identifying vulnerabilities.Protiviti’s custom methodology mirrors several industry standards, such as the Penetration Testing Execution Standard (PTES) and Open Web Application Security Project (OWASP), to determine and validate root causes of identified issues, and collaboratively work with organisations to develop recommendations that best fit their environments. Our penetration testing methodology Although each client environment is unique, Protiviti applies a standardised approach to attack and penetration services testing to ensure a quality deliverable. Our standard penetration testing methodology (shown below) is a baseline for all engagements and provides flexibility to succeed. Crisis averted A medical device manufacturing company proactively partnered with Protiviti to pinpoint a hole in their technology, avoiding a publicity nightmare. Why choose Protiviti for vulnerability assessment and penetration testing services in Bulgaria? Selecting the right partner for vulnerability assessment and penetration testing (VAPT) in Bulgaria is critical to ensuring strong cyber resilience. Protiviti combines global expertise with local market understanding to deliver comprehensive security testing and remediation support. Protiviti’s pen testing experts help organisations to:Protect sensitive data, intellectual property, and customer trustMinimise the risk of operational downtime and cyberattacksGain detailed remediation guidance tailored to your IT environmentEnsure compliance with industry security standards and best practices Leadership Andrea Rista Andrea Rista is Director at Protiviti Italy and Protiviti Bulgaria, with focus on Business Risk Consulting, Corporate Governance and Internal Audit services.In Protiviti since 2004, he developed strong skills in internal audit, risk management, corporate governance, and ... Learn more Stan Oparanov Stan Oparanov is Director at Protiviti Milan and Protiviti Bulgaria. Stan is one of the leaders of Protiviti Bulgaria and focuses on the use of technology and innovation in management consulting, risk management, compliance and internal audit.He has strong ... Learn more Featured insights Top Risks 2026: Executive Perspectives & Growth Opportunities SURVEY 8 min read SIFMA’s Quantum Dawn VIII After-Action Report WHITEPAPER 3 min read Mythos Emphasises Why Continuous Hardening Is Critical INSIGHTS PAPER 9 min read Frequently asked questions What are attack and penetration services, and why are they important? + Attack and penetration services identify security vulnerabilities that could lead to data breaches, business disruption or reputational damage. By simulating real-world attacker behaviour, organisations gain a deeper understanding of their risk exposure. These services help prioritise remediation and strengthen overall security posture. How does Protiviti conduct attack and penetration services? + Protiviti uses an “attacker mindset” supported by commercial tools, open-source utilities and advanced penetration testing techniques to identify vulnerabilities. Our assessments determine root causes and provide actionable remediation guidance. This approach ensures organisations receive insights that go beyond simple vulnerability identification. What types of attack and penetration services does Protiviti offer? + Protiviti offers a broad suite of attack and penetration services in Bulgaria, including Red Team and Adversary Simulation, Application and Software Security, Network Penetration Testing, Social Engineering, Cybersecurity M&A Due Diligence and Ransomware Advisory and Recovery. Each service targets different types of threats and attack surfaces. Together, they help organisations assess weaknesses across people, processes and technology. How does Protiviti’s penetration testing methodology ensure quality and consistency? + Protiviti applies a standardised penetration testing methodology that aligns with industry standards such as PTES and OWASP. This methodology includes enumeration, vulnerability identification, exploitation, privilege escalation and lateral movement. It provides a consistent framework while allowing flexibility for unique client environments. What makes Protiviti’s attack and penetration approach innovative? + Protiviti’s approach is guided by threat intelligence and focuses on understanding risk holistically not just identifying vulnerabilities. We validate root causes, collaborate with clients on tailored recommendations and leverage the latest techniques and tools. This ensures assessments reflect real-world threats and deliver meaningful, actionable outcomes.