Honeycake

Honeycake is a data protection company headquartered in Center City, Philadelphia (1900 Market Street) that develops self-protecting file technology. The company's core product is a proprietary file format called .cake, which embeds encryption, access permissions, and an audit trail directly into the file itself rather than relying on perimeter-based security controls. The .cake format uses AES-256 client-side encryption, meaning files are encrypted and decrypted on the user's device and never transmitted to or stored on Honeycake's servers (a model the company calls "zero-exposure architecture"). Users can set per-recipient access controls, time-limited access (TTL), and revoke or fully "burn" access to a file even after it has been shared. Key capabilities include: - Per-section redaction: a single .cake file can present different content to different recipients based on their clearance level, using features called Layer Bake and Parbake - Post-send control: access can be granted, revoked, or burned for individual recipients at any time - Searchable encrypted metadata via a feature called Ingredients, designed for compatibility with document management systems and AI tools - A CLI for automation and scripting with JSON output support The product is available across multiple platforms and integration points: macOS, Windows, iOS, Android, a web portal, a Gmail browser extension (beta), and an enterprise Outlook add-in. The company positions its technology as a response to the risk of sensitive documents flowing outside formal systems of record through email, chat, and cloud storage, including exposure to AI agents operating on those channels. Honeycake was founded by the founder of Integral Ad Science (NASDAQ: IAS), who holds patents in fraud detection and data protection. The team reports approximately 100 combined years of enterprise security experience.