Blockchain technology is a decentralized, digital ledger that records transactions and data across a network of computers in a secure and transparent manner. It's the underlying technology behind cryptocurrencies like Bitcoin and Ethereum, but its applications extend far beyond digital currency.

Key features of Blockchain technology include:

1. Decentralization: No single entity controls the network.

2. Transparency: All transactions are publicly visible.

3. Security: Cryptographic algorithms and hash functions ensure data integrity.

4. Immutability: Transactions can't be altered or deleted.

5. Consensus: Network nodes verify and validate transactions through consensus mechanisms.

Blockchain technology has various applications, including:

1. Cryptocurrencies

2. Supply chain management

3. Smart contracts

4. Identity verification

5. Healthcare record management

6. Voting systems

7. Cybersecurity

Its benefits include:

1. Enhanced security

2. Increased transparency

3. Improved data integrity

4. Automation through smart contracts

5. Decentralized control

In summary, Blockchain technology is a secure, transparent, and decentralized way to record and share data, with far-reaching potential beyond digital currency.