Introducing GLM-5.3: Built to Code. Ready for Cyber Defense. - Top-tier coding and agentic capabilities, achieved through post-training on the 743B base model - A major leap in cybersecurity, setting a new standard among open models Tech Blog:

We have some difficult news to share. Unfortunately, one of our shipping providers has experienced a data breach that exposed sensitive order data. This affects new customers in the US, UK, Sweden, Colombia, Brazil, Italy, and Portugal who received an order within the 90 days prior to August 8th, 2026. The data exposed: - Full names - Shipping addresses - Phone numbers - Email addresses The incident affects 11,742 customers with full exposure (name, email, phone number, shipping address) and 1,947 customers with partial exposure (name, city, email). The breach is limited due to Trezor’s strict 90-day data storage policy (we were also able to negotiate the same terms with fulfillment partners, who follow the same policy). All affected customers have been contacted separately by email. Our systems and devices remain secure, but affected customers could experience an increase in phishing attempts. NEVER enter your wallet backup on a website or share it with anyone, and only check for updates on official Trezor channels. We are deeply sorry to the community and those affected. We are investigating this situation and will post updates on our blog: