How do I know if my personal life is accessible online with open source?

It’s a simple question, but one that very few people ever stop to ask about open source — until something goes wrong.

We tend to think of privacy breaches as the result of hacking, phishing, or data leaks. The reality is often far more uncomfortable: much of what someone could want to know about you is already publicly available, legally accessible, and scattered across the open internet.

Not hidden. Not encrypted. Just open source.

Open source information (often referred to as OSINT) is data that anyone can access without breaking the law or bypassing security controls. On its own, each piece of information may seem harmless. Viewed together, it can form an impressively detailed picture of your life.

Most people are unaware of how much they have unintentionally exposed. Social platforms remain the most obvious source of personal information, but the risk isn’t limited to what you consciously post.

• Family relationships, children’s names, and routines are often visible through tagged posts.
• Locations can be inferred from repeated check‑ins, photos, backgrounds, or comments.
• Security measures—alarm boxes, gates, cameras—are regularly visible in property or lifestyle photography.
• Holiday posts can indicate when a property is unoccupied.

Even when profiles are “private,” friends’ posts, public comments, or historical content can still surface valuable intelligence.

One of the most frequently overlooked exposure points is property portals such as property listings. A single listing can reveal, full address and precise location, internal and external photography, Detailed floor plans, Garden access points and boundary lines. And descriptions that highlight security features—or lack of them

Even after a sale completes, listings frequently remain cached, archived, or duplicated across other sites. In some cases, historic images and floor plans remain accessible for years.

In the UK, planning applications are public by default. Depending on the nature of the application, these records may include:

• Scaled architectural drawings
• Floor layouts and elevations
• Access points
• Security considerations
• Names of homeowners, agents, or architects

These documents are published online by local authorities, searchable by address, name, or postcode, and rarely considered in a personal security context.

What an OSINT report tells you

Our reports simulate the perspective of a hostile or curious third party using only lawful, open-source intelligence. Crucially, we don’t just list findings—we contextualise risk.

Clients are often surprised not by how much is available, but by how easily it can be found and connected. In many cases, simple practical steps can significantly reduce exposure once vulnerabilities are identified. You can’t protect what you don’t know exists.

As data becomes more searchable, indexed, and interconnected, the line between “public” and “private” has blurred. Tools that once required specialist access are now readily available, and open-source research has become faster and more powerful than ever. Understanding your open-source footprint is no longer a niche concern—it’s a foundational part of personal security.

The answer, increasingly, is open source.