Threshold Network, formed by the merger of NuCypher and Keep protocols, provides cryptographic infrastructure for privacy-preserving applications. Their Threshold Access Control (TAC) allows for end-to-end encrypted data sharing without the need for trust in a centralized authority. The platform also offers Condition Based Decryption (CBD) and Proxy Re-Encryption (PRE) to grant and revoke access to encrypted data based on on-chain conditions.