IT Forensics · OSINT

Conducting a forensic reverse image search – forensically tracing the origin and first use of an image

Reverse image search can be used to check whether an image has already been published elsewhere on the internet, which allows conclusions to be drawn about its original source, first publication or possible unauthorised reuse.

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This method may be useful for checking whether an image presented is actually up to date and authentic, or whether it originates from a different context.

Why LanCologne?

Since its foundation, LanCologne has specialised in professional IT forensics. Our staff have decades of experience in the field of information technology and assist companies, solicitors, private individuals and, on a regular basis, the courts in the technical investigation of complex digital matters.

Our OSINT investigations are always carried out as a complementary component to existing IT forensic, legal or internal corporate enquiries. Every step of the investigation and every piece of digital evidence found is documented and, where technically possible, archived to ensure traceability even if the original online content is subsequently altered or deleted.

Our services

We carry out a structured reverse image search for a relevant image and document any previous publications found in a manner that is forensically verifiable.

Typical areas of application

Verifying the authenticity and recency of an image
Evidence of unauthorised use of images
Supplement to investigations into fake profiles
Identifying images taken out of context
Judicial and non-judicial expert reports
Collaboration with solicitors and companies

This is how a reverse image search analysis works

The relevant image is checked against previous publications using several independent search services. Any matches found are documented with the date, source and context, and compared with the case in question.

Why is reverse image search relevant in a forensic context?

Evidence of a previous publication from a different context can be crucial in exposing an image as inauthentic or misleading.

Proof of the first publication of an image can also be of considerable importance in relation to copyright issues.

Frequently Asked Questions

Does a reverse image search always find all previous publications?+
No, the search index for individual services is limited; we therefore use several independent search services to improve the hit rate.
Can it also recognise an edited image?+
To some extent, particularly if the unedited original image can also be found, which allows for a direct comparison.
Is the method combined with further verification steps?+
Yes, particularly when it comes to analysing image metadata and determining geolocation.

LanCologne – IT Forensics OSINT Cologne

Do you require a professional OSINT investigation into „conducting a forensic reverse image search"? LanCologne can assist you with the transparent, documented analysis of publicly available digital sources to support your IT forensic, legal or internal corporate enquiries.

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