Xabier Durruti
Applied experience

Anonymised case studies

Examples of situations handled in data recovery and open-source research. Identities, files and sensitive details are omitted to protect the people involved.

Data recovery

Lost data on hard drives and SD cards

Situation

People who had lost information stored on hard drives, SD cards and other media requested a technical assessment.

Work carried out

Data recovery work was performed while avoiding actions that could overwrite or further damage information that might still be recoverable.

Outcome

These assignments recovered many gigabytes of information from the affected devices.

Important: every storage device and failure is different. Recovery prospects can only be assessed after understanding the device and what happened.

OSINT · Digital exposure

Review after a phishing attack

Situation

A person who had suffered a phishing attack asked whether their personal data, photographs or videos were publicly exposed online.

Work carried out

Open sources were reviewed for publicly available material associated with the person, cross-checking the results available at the time of the investigation.

Outcome

No personal content was found publicly exposed within the scope and at the specific time of the review.

Scope: a negative result reduces uncertainty, but does not prove that content is absent from private, closed or not-yet-indexed spaces.

Other related work

Messages on mobile devices

Assessment of authorised message recovery or extraction, depending on the device, its condition, available backups and legitimate access to the information.

Email verification

Technical review of messages and available headers to analyse senders, delivery routes, time consistency and indicators related to fraud or phishing.

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