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Open Source Intelligence (OSINT) Service
Identify security risks hidden in publicly available information
Our OSINT service helps organisations understand what information is publicly available about them, transforming open data into meaningful intelligence that supports security, risk management, and informed decisions.
What is OSINT service?
At Zensec, our open source intelligence OSINT service helps organisations understand what sensitive data, assets, and intelligence are exposed through public sources. Through structured open source intelligence gathering, we support security teams, security professionals, and the private sector in identifying security risks, potential threats, and weaknesses before they result in data breaches or exploitation by threat actors. Using proven OSINT techniques and advanced open source intelligence tools, we transform publicly available raw data into meaningful intelligence that supports cyber security, vulnerability management, and informed decision making.
Open source intelligence (OSINT) is the process of gathering information, collecting data, and analysing information that is legally available from public sources. This includes news articles, news sites, web pages, public records, social media platforms, social networking sites, forums, and technical data exposed across the deep web and dark web.
Unlike classified intelligence such as signal intelligence or human intelligence, open source intelligence OSINT relies on openly accessible information collected using search engines, advanced search operators, OSINT tools, and online OSINT tools. When analysed correctly, this data can reveal sensitive information, exposed IP addresses, contact details, leaked encryption keys, and indicators of compromise affecting internet connected devices and internal assets.
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Why choose Zensec
We combine deep technical expertise with practical, real-world experience to deliver CREST-accredited penetration testing services that truly make a difference. Our cyber security experts don’t just run scans, they identify and exploit vulnerabilities the way real attackers would, helping you uncover security flaws before they become security incidents. We tailor every engagement to your specific business operations, including cloud platforms, computer systems, and critical assets, ensuring complete alignment with your threat landscape.
Our transparent scoping process means you get clear insight into your pen test cost before anything begins. We provide detailed reports with actionable remediation advice, and support you beyond the test with strategic guidance. Whether you’re pursuing compliance with frameworks like Cyber Essentials or defending against the latest emerging threats, we deliver results that strengthen your security posture. Zensec ensures your investment delivers not just visibility, but lasting protection, through rigorous testing, expert support, and a commitment to ongoing improvement with regular penetration tests on a continuous basis.
We are equipped to deal with an attack from any ransomware group.
Don’t hesitate to contact us if you are under attack from a ransomware group not listed above.
The importance of OSINT
Attackers, cyber criminals, and hostile actors routinely use open source intelligence gathering to plan attacks, conduct active reconnaissance, and identify victims. Without visibility into what information is publicly exposed, organisations may unknowingly leak valuable data, intellectual property, or operational details that support cyber threats, online fraud, and targeted attacks.
OSINT is widely used by law enforcement agencies, government agencies, the intelligence community, and national security teams, but it is equally critical for organisations seeking to understand and reduce exposure.
Proactive OSINT research helps organisations:
Identify exposed sensitive data and confidential data
Detect data leaks and early indicators of compromise
Understand security threats and attacker reconnaissance
Support prevent data breaches initiatives
Strengthen organisation’s security posture
Provide actionable intelligence for security and leadership teams
Key features
Zensec follows a structured intelligence led approach aligned with the intelligence cycle, ensuring consistency, accuracy, and value.
Scoping and objectives
We define scope, objectives, and legal boundaries, aligning OSINT activity with business operations, risk priorities, and legal proceedings considerations where relevant.
Data collection and gathering intelligence
Using OSINT tools, search operators, advanced search operators, and platforms such as the Google search engine, we gather search results, monitor news sites, analyse social media platforms, and collect OSINT data from public facing systems, forums, and the dark web.
Analysis and data mining
We analyse data collected, correlate data points, and perform data mining to identify patterns, anomalies, and exposure risks. This includes analysing publicly exposed infrastructure, leaked credentials, and references to internal systems.
Reporting and actionable insights
We convert raw data into actionable insights, highlighting potential threats, exposed assets, and identify vulnerabilities. Our reporting focuses on relevance, impact, and practical next steps.
Our open source intelligence OSINT service may include analysis of:
Public exposure of sensitive information and confidential data
Mentions of organisations across news articles and forums
Exposed IP addresses and infrastructure data
References to internal assets and systems
Dark web monitoring for leaks and credentials
Evidence gathering to gather evidence for investigations
Indicators of cyber threats and threat actor activity
Market trends and business intelligence insights
All intelligence is gathered ethically, legally, and responsibly.
What attackers see is often what organisations overlook. Open source intelligence OSINT services provide critical visibility into how your organisation appears to adversaries before they act. Contact Zensec today to discuss an open source intelligence assessment and gain the insights needed to reduce risk, protect sensitive information, and strengthen your overall security posture.
Explore Our Penetration Testing Services
Comprehensive offensive security assessments tailored to your organisation’s threat landscape.
Uncover vulnerabilities in your web apps before attackers do.
Secure your iOS and Android applications against real-world threats.
Test your perimeter defences from an outsider’s perspective.
Identify risks an insider or compromised device could exploit.
Full-scope adversary simulation to stress-test your entire security posture
Simulate a compromised network to measure detection and response.
Collaborative red and blue team exercises to sharpen your defences.
Evaluate your people’s resilience against phishing and manipulation.
Discover what attackers can learn about you from public sources.
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Frequently asked questions
Key information when you’re under pressure.
Open source intelligence (OSINT) is the process of gathering information and collecting data from legally available public sources such as search engines, news articles, news sites, web pages, public records, and social media platforms. Using OSINT tools, advanced search operators, and structured open source intelligence gathering, security professionals can transform raw data into meaningful intelligence that helps identify security risks, potential threats, and exposed sensitive information.
An open source intelligence OSINT service may analyse a wide range of data points, including IP addresses, contact details, exposed confidential data, leaked encryption keys, references to internal assets, and mentions across social networking sites, forums, and news articles. Assessments may also include monitoring the deep web and dark web for data leaks, online fraud, and activity linked to cyber threats or threat actors.
OSINT is widely used by security teams, security professionals, law enforcement agencies, government agencies, the intelligence community, and organisations within the private sector. It supports a range of objectives, including cyber security, business intelligence, national security, legal proceedings, and identifying risks that could impact business operations or intellectual property.
Following an OSINT engagement, Zensec provides a clear report containing actionable intelligence and actionable insights. This includes analysis of data collected, identification of security threats, exposed assets, and identify vulnerabilities that could be exploited. The findings help organisations prevent data breaches, strengthen their organisation’s security posture, and support effective risk management and vulnerability management initiatives.
Dealing with a ransomware attack?
Our ransomware recovery service can help
Our expert team works quickly to contain the breach, recover your data, and restore your systems to full operation. We’ll guide you through every step of the recovery process and help strengthen your defences to prevent future attacks. Regain control with Zensec - trusted support when it matters most.