Preserve before removing, the Marco Civil da Internet (Brazil's Internet Civil Rights Framework) after the Supreme Court ruling, and the technical path from the platform to the subscriber.
Fake profiles and offensive posts call for two things: taking them down and finding out who did it. Done in the wrong order, one destroys the other. A page removed before it is preserved takes with it the account identifier and the timestamps the examination would need.
The path to the author is technical and has a deadline. The platform reports which IP address the access came from; the connection provider reports who was using that IP. Without the source port and the right time zone, the carrier returns a list of subscribers.
In 2025 the STF (Brazilian Federal Supreme Court) changed platform liability and, in June 2026, settled the final thesis. The course shows what was decided, how to preserve before removing, what the request for records must list and how to read the providers' replies.
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A lawyer had the passwords of her accounts with three providers changed by a third party, who downloaded and deleted files. The self-service tools showed only a short window of access. The examination preserved what existed and showed what to request from each provider and from the carriers. The technical opinion supported the claim for specific performance, within the six-month retention period.
A company suffered fraud through an intrusion into its systems. The access came from a few IP addresses, each shared by thousands of mobile lines. Once the times were cross-checked, hundreds of suspects remained: without the source port, there was no way to single out the author.
An audio clip on social media told a false story in a person's voice. The examination showed that the voice had been generated by artificial intelligence and preserved the posts so that authorship could be investigated.
In pairs, the class receives a platform's simulated reply (illustrative example): access to a fake profile with IP, port and time in UTC, and the posts in Brasília time. In 15 minutes, each pair converts the times, marks the matching access events and fills in the request to the connection provider.
Laws and rulings discussed
Marco Civil da Internet, arts. 10, § 1º, 13 and 15 (Brazil's Internet Civil Rights Framework) · Marco Civil da Internet, arts. 19, § 1º, 21 and 22 · STF (Brazilian Federal Supreme Court), final thesis on Themes 987 and 533 · STF, news item of 17 June 2026 · STF, news item of 26 June 2025 · STJ (Brazil's Superior Court of Justice), REsp 2.170.872 · CPC, art. 384 (Brazilian Code of Civil Procedure) · CPP, art. 38 (Brazilian Code of Criminal Procedure)
See also
Digital Authorship and Subscriber Data Disclosure → Forensic Services in Digital Law and Technology → Forensic Services in Media, Entertainment and Deepfakes → Representative Cases → See all courses →