Myseum (NASDAQ: MYSE) Rebrands as Myseum.AI to Align with Full Suite of Technology and Social Media Platforms

Company developing privacy-first agentic platform for social media

NEW BRUNSWICK, N.J., April 15, 2026 — Myseum, Inc. (Nasdaq: MYSE) (“Myseum” or the “Company”), a privacy-first social media and technology innovator, today announced that it is now operating under the new name Myseum.AI, Inc. effective April 15, 2026. The rebrand illuminates the Company’s core technology platform that will integrate proprietary privacy-first artificial intelligence (AI) into its secure messaging and social media platforms. The Company is developing privacy-first agentic localized AI agents that assist in managing personal media such as photos, videos and messages, while maintaining privacy. The technology adapts to individual patterns and preferences to better assist the user while maintaining data integrity and encryption to ensure that user information is never shared with any other social platforms. Essentially, the personalized AI assistant learns from the user’s individual actions and never shares that information with traditional AI models.

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In conjunction with the name change, Myseum.AI stock will continue to trade on Nasdaq under the ticker symbol “MYSE.”

“As a privacy-first AI and social media technology company, we continue to deliver on our commitment to innovation in the secure digital media space through our development of popular privacy-first user platforms. Our new name, Myseum.AI, identifies our core AI-based technology that secures our multi-tiered social media ecosystem,” said Darin Myman, CEO of Myseum.

About Myseum, Inc.

Myseum, Inc. (formerly DatChat Inc.) is a privacy-focused AI and social media technology company developing innovative platforms for secure digital sharing and storage. Its flagship platform, Picture Party, is a next-generation patented instant social networking experience designed to make it easier, more fun and private to share. The platform enables users to create curated albums, build encrypted galleries with controlled access, personalize their content feeds, and organize collections within a broader digital ecosystem. Picture Party by Myseum is currently available at the iOS app store and Google Play store, with a desktop version expected later this year.