Lido is a liquid staking protocol which means that users can stake on its staking platform any amount of tokens. There is no minimum token staking criteria on its protocol.

When you stake lido on its platform you will receive its derivative token in 1:1 ratio and these derivative tokens have a number of use cases on the lido platform.

For example, if you stake an ETH token you will receive stETH. LIDO is a governance token. Another use case is that it can be used to stake on liquidity pools and in return users can earn extra income.

Lido DAO (Decentralized autonomous organization) manages the decision-making process of the protocol through the voting power of governance tokens.

It is decentralized to a certain extent and not fully which allows them to operate without central authorized authority.

Its protocol is secure in nature because of DAO based model of governance, continue monitoring and audit of smart contract audit, and also because of the non-custodial staking service they provide to its users.

Lido finance also runs a bug bounty program to maintain and ensure its protocol, by making it leakproof big disasters can be prevented. 

Users can stake and earn daily on its protocol and currently supported networks are as follows:- Ethereum, Solna, Polygon, Polkadot, and Kusama.

A larger number of apps and services are integrated with the lido protocol which means that users have huge potential to put their staked assets to use and earn rewards.

A few of the currently supported apps and services are  AAVE, FTX, Curve, etc.