Brazil: Bill amending Law No. 15.211 establishing algorithmic integrity mechanisms (PL 687/2026) including design requirement was introduced to Chamber of Deputies

On 24 February 2026, the Bill establishing algorithmic integrity mechanisms, limits to persuasive design, and a parental alert system in messaging environments (PL 687/2026) was introduced to the Chamber of Deputies. The Bill would amend Law No. 15.211 of 2025 (Digital Child and Adolescent Statute) and would require digital platforms to observe the principle of safety by design by adopting technical and organisational measures to prevent structural risks to the physical health, mental health, and psychosocial development of children and adolescents. The Bill would prohibit targeted engagement design techniques for minors under 18, specifically infinite scroll without a navigation interruption mark every 15 minutes, media autoplay without deliberate user action, and variable reward mechanisms such as intermittent notifications. The Bill would further mandate that end-to-end encrypted messaging applications provide Local Integrity Technical Mechanisms to process device metadata and behaviour patterns. These mechanisms would issue Technical Risk Alerts to legal guardians regarding nudity, extreme violence, grooming, or adult-majority groups without breaking communication secrecy.