Countries › Brazil › Guide › 13. Regulation › Internet platforms and children online in Brazil: Marco Civil log retention, platform liability after the 2025 Supreme Court ruling and the ECA Digital
Internet platforms and children online in Brazil: Marco Civil log retention, platform liability after the 2025 Supreme Court ruling and the ECA Digital
Last verified: 2026-10-27 · Status: Changing
Any internet service that collects data in Brazil or serves Brazilian users must follow Brazilian law, keep access logs for 6 months (connection logs for 1 year) and faces fines of up to 10 percent of group revenue in Brazil. Since the Supreme Court's June 2025 ruling, platforms can be liable for most illegal third party content once notified, not only after a court order. The ECA Digital, in force since 17 March 2026 and enforced by the ANPD, requires age assurance, parental linking under 16 and bans loot boxes and profiling ads for minors, with fines up to R$50,000,000.
USD figures use the Banco Central do Brasil PTAX selling rate of R$5.3346 per US dollar for 27 October 2026. Conversions are for orientation only.
Key facts
| Retention of connection logs by connection providers | 12 monthsLei nº 12.965 art. 13, as of 2014-04-23 · in force |
|---|---|
| Retention of application access logs by commercial application providers | 6 monthsLei nº 12.965 art. 15, as of 2014-04-23 · in force |
| Maximum Marco Civil fine, percent of group revenue in Brazil | 10 %Lei nº 12.965 art. 12 II, as of 2014-04-23 · in force |
| ECA Digital fine cap per infraction | 50000000 BRLLei nº 15.211 art. 35 II, as of 2026-03-17 · in force |
| Maximum ECA Digital fine, percent of group revenue in Brazil | 10 %Lei nº 15.211 art. 35 II, as of 2026-03-17 · in force |
| Age up to which minors' accounts must be linked to a parent's account | 16 yearsLei nº 15.211 art. 24, as of 2026-03-17 · in force |
| Registered minor users above which semiannual reports are required | 1000000 usersLei nº 15.211 art. 31, as of 2026-03-17 · in force |
| ECA Digital entry into force | 2026-03-17 dateLei nº 15.211 art. 41-A as added by Lei nº 15.352/2026, as of 2026-02-25 · in force |
The rule
Cost to do it: Fine exposure up to 10 percent of group revenue in Brazil.
Example: On group revenue in Brazil of R$2,000,000,000, the ceiling is R$200,000,000. / About US$37,491,096 on about US$374,910,959.Lei nº 12.965 of 23 April 2014 (Marco Civil da Internet), Art. 12 items I to IV and sole paragraph, 2014-04-23 official text · verified 2026-10-27
Cost to do it: Storage and security cost for 6 months of access logs for every commercial application.Lei nº 12.965 of 23 April 2014 (Marco Civil da Internet), Arts. 13 caput and §§ 2, 3 and 5; 15 caput and §§ 2 and 3, 2014-04-23 official text · verified 2026-10-27
Cost to do it: Fine exposure up to R$50,000,000 per infraction.
Example: A service with no revenue in Brazil and 20,000 registered users could face up to R$20,000,000 at R$1,000 per user; a larger user base hits the R$50,000,000 cap. / About US$3,749,110 and a cap of about US$9,372,774.Lei nº 15.211 of 17 September 2025 (ECA Digital), Art. 35 items I to IV and §§ 2, 4, 5 and 6, 2025-09-17 official text · verified 2026-10-27
| Content or service | When the platform becomes liable |
|---|---|
| Most illegal content | If not removed after a removal request (notice) |
| Crimes against honor (libel, slander, insult) | Only after a court order (art. 19) |
| Serious content listed by the Court (terrorism, child abuse material, hate speech and others) | Systemic failure to prevent or remove (art. 21 logic) |
| Paid ads, boosted content, illegal bot networks | Without notice or court order |
| Email, closed meetings, private messaging | Art. 19 court order rule for interpersonal communications |
| Replicated content already held offensive by a court | Removal of identical copies on judicial or private notice |
Platform liability for third party content after the Supreme Court ruling of 26 June 2025 (Themes 987 and 533). Source: STF.
Worked example
- Foreign social app. A platform based abroad with Brazilian users must keep access logs for 6 months (Marco Civil art. 15), act on removal notices for most illegal posts after the 2025 ruling, and, because teenagers are likely users, implement age assurance, link accounts of users up to 16 to a parent and appoint a legal representative in Brazil (ECA Digital arts. 24 and 40).
- Game publisher. A mobile game rated for teenagers sells random reward boxes. Under ECA Digital art. 20 the feature is banned for that audience; a fine can reach 10 percent of group revenue in Brazil, capped at R$50,000,000 (about US$9,372,774) per infraction (art. 35 II).
Step by step
- 1. Decide whether the service is aimed at or likely accessed by minors using the three tests of ECA Digital art. 1 sole paragraph.
- 2. Appoint a legal representative in Brazil with powers to receive service (art. 40).
- 3. Implement log retention: 6 months for application access logs, 1 year for connection logs.
- 4. Build notice and takedown, appeal and transparency processes that match the 2025 Supreme Court thesis.
- 5. For services used by minors: age assurance, parental linking up to 16, no loot boxes, no profiling ads, removal and reporting of abuse content, and semiannual reports above 1,000,000 minor users.
- 6. Track ANPD guidance: adaptation period to November 2026 and enforcement from January 2027.
Common traps
- Relying on the old court order rule. After June 2025, waiting for a court order exposes platforms to liability for most illegal content, except crimes against honor.
- Thinking the ECA Digital covers only children's apps. It reaches any service likely to be accessed by minors (art. 1).
- Ignoring the foreign group's Brazilian entity. It is jointly liable for Marco Civil and ECA Digital fines (art. 12 sole paragraph; art. 35 § 2).
- Collecting more data for age checks. Age verification data may be used only for that purpose (ECA Digital art. 13) and the LGPD still applies.
Sources
- Lei nº 12.965 of 23 April 2014 (Marco Civil da Internet), Congress normas portal
- Lei nº 15.211 of 17 September 2025 (ECA Digital), Congress normas portal
- Lei nº 15.352 of 25 February 2026, Congress normas portal
- STF news, parameters for platform liability for third party content (26 June 2025)
- STF, Theme 987 status page
- ANPD, ECA Digital page (decrees and enforcement schedule)
- Banco Central do Brasil, PTAX exchange rate (olinda service)
Related pages
- regulation/personal-data-protection
- regulation/consumer-protection
- taxes/digital-services
- sectors/telecommunications
- /country/brazil/
- /calendar/
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- https://theargentinethread.com/guide/
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