IT Forensics · OSINT

Mapping pseudonyms and usernames using OSINT – Forensically linking reused usernames

Users often use the same or similar usernames across different platforms, which can enable a structured linking of various public profiles.

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As part of our work on existing cases, we carry out structured research to identify which publicly accessible profiles are linked to a relevant pseudonym or username.

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 search publicly accessible platforms for profiles with a relevant username or pseudonym and document any identifiable links in a manner that is forensically verifiable.

Typical areas of application

Linking a pseudonym to other public profiles
Supplementing fraud and threat investigations
Support in assessing anonymous online comments
Documentation for disputes relating to press law
Judicial and non-judicial expert reports
Cooperation with solicitors and law enforcement agencies

This is how pseudonyms are assigned

SpiderFoot systematically checks the relevant username against numerous publicly accessible platforms; any profiles found are documented, including the platform, activity and any discernible similarities.

Why is the linking of pseudonyms relevant from a forensic perspective?

Linking several profiles can provide important additional insights, for example into behavioural patterns or other relevant content.

This may be relevant to the subsequent legal assessment, particularly in the case of anonymous threats or content that is defamatory.

Frequently Asked Questions

Can every pseudonym be linked to a real person?+
No, identification is only possible to a limited extent using publicly available information; we communicate the existing limitations of our investigations transparently.
Are similar, but not identical, usernames also taken into account?+
Yes, provided that this is relevant to the research question and methodologically justifiable.
Does LanCologne carry out independent investigations in this context, like a private detective agency?+
No, the investigation is carried out solely to provide supplementary support for an existing IT forensic, legal or in-house case.

LanCologne – IT Forensics OSINT Cologne

Do you require a professional OSINT investigation into „mapping pseudonyms and usernames using OSINT"? LanCologne can assist you with the transparent, documented analysis of publicly available digital sources to complement your IT forensic, legal or internal corporate enquiries.

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