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What is OSINT?

Your next breach is probably already public. A vendor leaked your credentials in a dump six months ago. An infected laptop posted session cookies to a Telegram channel last week. An Initial Access Broker (IAB) is quietly auctioning RDP into a system on your domain. Your firewall sees none of it.

Breachsense monitors these sources for your leaked credentials and session tokens. Internal documents that surface in leak dumps are searchable too. We track mentions of your organization on hacker forums and Telegram channels. We also flag IAB listings against systems on your watchlist. Newly registered typosquat and homoglyph domains targeting your brand get flagged too.

Shadow IT is the biggest OSINT blind spot. Every new SaaS your team adopts adds exposure you don’t track. Misconfigured S3 buckets leak documents you didn’t know existed. A reused password on a breached vendor portal hands attackers VPN access. OSINT monitoring catches these exposures early so you can fix them before attackers find them.

Three OSINT workflows lean on the Breachsense API most often. In-house SOC teams feed continuous alerts into their SIEM. They watch for their company’s domains and executive names showing up in stealer logs or hacker forums. Red teams pull working credentials and leaked session tokens for in-scope targets so initial access doesn’t burn a week. Incident responders run full-text search across leaked files from ransomware attacks to scope what an attacker actually took.

Every OSINT workflow leans on pivoting. An employee shows up in a stealer log. Pivot on their username to find every other service that handle touched. Pivot on their email to surface leaked documents and hacker forum mentions tied to your org. API access makes that pivoting scriptable instead of manual.

Why Monitoring OSINT Matters

Early data breach detection

Get alerted when your data is exposed. The sooner you know, the faster you can act.

Stop Initial Access Brokers

Initial Access Brokers are one of the main drivers behind ransomware attacks. Reset leaked credentials before they’re exploited.

Prevent phishing attacks

Identify and take down malicious domains mimicking your organization. Get them taken down before they harvest your employees’ credentials.
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Who Uses Breachsense for OSINT

OSINT means different things depending on who's asking the questions. Here's how four common roles use Breachsense data, and which sources they pull from most.

  • Offensive Security

    Red team operators

    Scope initial access for authorised engagements. Walk in with working credentials and leaked session tokens instead of brute-forcing.

    What they use:
    Stealer log credentialssession tokensdark web API
  • Threat Intelligence

    CTI analysts

    Track which attackers are talking about your sector or supply chain. Pivot across forums and leaked file contents from ransomware attacks to build the exposure picture.

    What they use:
    Hacker forum coverageRansomware leak sitesLeaked file search
  • M&A Due Diligence

    Acquisition risk teams

    Surface undisclosed breaches and ransomware exposure before signing. Search target domains across leaked file contents to find skeletons a SOC 2 won't.

    What they use:
    Ransomware leak siteshistorical credential exposurethird-party data
  • Investigations

    Fraud and IP theft investigators

    Trace stolen source code or insider data theft. Pivot on usernames and passwords across stealer logs, combo lists and 3rd party breaches.

    What they use:
    Hacker forum postsLeaked file contentsthird-party data

How Does Breachsense Monitor OSINT?

Add Domains & Employee Emails

We Monitor Public Sources

Get Threat Alerts

Shut Down Exposed Access

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Frequently Asked Questions

OSINT stands for Open Source Intelligence. According to the U.S. Intelligence Community, it’s intelligence derived exclusively from publicly or commercially available information. For security teams, cyber threat intelligence platforms use OSINT to monitor hacker forums, code repositories, and dark web sources. They look for exposed credentials and discussions about attacks planned against your company.
Yes, OSINT monitoring is completely legal when conducted properly. As confirmed by the NIH, OSINT only involves collecting and analyzing publicly available information that anyone could access through legal means. This includes public websites, forums, and data breach collections. It’s completely different from hacking or unauthorized access. You use OSINT to protect yourself by monitoring for compromised credentials and leaked company data before attackers exploit them.
No, OSINT goes far beyond Google searches. While search engines are one OSINT tool, thorough OSINT monitoring requires specialized tools to access sources that Google can’t index. This includes private hacker forums, threat attacker channels on Telegram and Discord, and dark web platforms. Security teams need continuous automated monitoring across these sources to catch threats as they surface.
ChatGPT and similar AI tools can assist with certain OSINT tasks like analyzing text and summarizing findings. However, ChatGPT can’t directly access dark web marketplaces or private hacker forums, and it doesn’t continuously monitor for new data breaches. Effective OSINT requires specialized threat intelligence platforms that actively crawl sources where stolen data appears. The platforms then alert your team when your organization’s data is exposed.
AI will help OSINT but not replace it. AI is great at analyzing large volumes of data and prioritizing threats. However, the collection side of OSINT still requires specialized infrastructure to access and monitor thousands of sources continuously. The future of OSINT combines AI-powered analysis with human expertise. Your team will use AI to process OSINT data faster, but human analysts remain essential for decision-making and contextual understanding.
OSINT is the broader category. It covers any intelligence gathered from publicly or commercially available sources, including the open web, social media, code repositories, and public forums. Dark web monitoring is a specific subset focused on hidden sources: criminal marketplaces, private hacker forums, ransomware leak sites, and stealer log distribution channels. Most security teams need both. Open-web OSINT catches misconfigurations and public mentions. Dark web monitoring catches stolen credentials and active attack planning.

Essential Threat Intelligence Resources

Cyber Threat Intelligence Software

Feed OSINT data into your threat intelligence workflows. How CTI platforms collect and deliver alerts you can act on.

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Dark Web Monitoring

Monitor criminal marketplaces, forums, and leak sites for your organization’s exposed data. Get alerted when credentials or sensitive data appears.

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Threat Actor Channels

Track private IRC and Telegram channels used by attackers. Monitor hacker communications for mentions of your organization or planned attacks.

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What Is Cyber Threat Intelligence?

CTI fundamentals, types of threat intelligence, and how security teams use intelligence to prevent breaches.

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Dark Web Threat Intelligence

Collect and analyze threat intelligence from dark web sources. Detect leaked credentials and exposed data before attackers act.

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Threat Intelligence Tools

Compare the best threat intelligence tools and platforms for security operations. Features, capabilities, and implementation guidance for SOC teams.

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Data Collection Techniques

Master the techniques security teams use to collect threat intelligence from diverse sources including OSINT, dark web, and private threat actor channels.

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External Threat Intelligence

How external threat intelligence complements internal security data. What to monitor outside your perimeter.

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Strategic Threat Intelligence

How strategic threat intelligence informs executive decision-making and long-term security planning.

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Monitor OSINT Sources for Your Leaked Data

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