# Core Features

- [Borrowing](/libre-docs/core-features/overview.md): Learn how to borrow USDT against your Bitcoin collateral with segregated vaults and transparent liquidation rules.
- [Lending](/libre-docs/core-features/overview-1.md): Earn predictable yield by providing USDT liquidity to fixed-rate lending pools backed by segregated Bitcoin collateral.
- [Custody & Security](/libre-docs/core-features/overview-2.md): Understanding Libre's security model with segregated Bitcoin collateral, transparent liquidations, and on-chain verifiability.