Diageo launches smartphone-verifiable anti-counterfeit seal in Brazil

Diageo has introduced a security seal on its spirits bottles sold in Brazil that consumers can authenticate using a smartphone. The rollout follows a methanol-contamination crisis in Brazil in late 2025 that caused several deaths and hundreds of illnesses linked to counterfeit alcoholic beverages.

Why this mattersBrand owners are turning to smart authentication on packaging to rebuild consumer trust after fatal counterfeiting incidents in emerging markets.

• Diageo introduced a smartphone-authenticated seal for spirits sold in Brazil
• The measure follows a late-2025 methanol contamination crisis in Brazil
• The contamination caused several deaths and hundreds of illnesses
• The seal lets consumers verify product authenticity via smartphone

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