Balaji Srinivasan believes that cryptocurrencies are entering a new era of security as ZK takes center stage.

The cryptocurrency industry enters the security era from December 2025, according to Balaji Srinivasan’s remarks in Dubai. During the Binance Blockchain Week event, he analyzed the development process of cryptocurrencies, from the proof-of-work(proof-of-work) stage to smart contracts.

Currently, the industry’s focus shifts to privacy protection, with the emergence of zero-knowledge proofs(zero-knowledge proofs) to ensure user data safety.

The Security Era: The Continuity and Development of Cryptocurrency

Balaji Srinivasan, former CTO of Coinbase, presented on the security era of cryptocurrencies at Binance Blockchain Week 2025 in Dubai. He described the industry’s development in three distinct phases. The first phase, from 2009 to 2017, focused on proof-of-work systems and network security. Bitcoin demonstrated that decentralized consensus could operate without an intermediary organization.

Privacy prospects in the cryptocurrency field | Source: Wu BlockchainAccording to Srinivasan, security issues are top priority during this period. Developers have continuously improved systems to counter threats, building trust based on mathematical algorithms rather than traditional institutions. This phase laid a solid foundation for subsequent advancements.

The second phase, starting from 2017 and lasting until 2025, centered on programmability and scalability. The emergence of platforms like Ethereum and Solana opened opportunities for developers to create smart contracts, driving the growth of decentralized finance(DeFi), token trading, and NFTs.

Srinivasan cites Uniswap as a typical example of how smart contracts can handle real financial transactions. He notes that although scalability remains a challenge, core ideas have been validated through practice.

Moving into the third phase, cryptocurrencies aim toward privacy protection and electronic data. Developers now focus on safeguarding personal information while maintaining network verifiability. Zero-knowledge proofs have become a key technology in this trend.

Zcash and Midnight: Markers of the Security Era

The concept of the security era is closely linked to privacy-focused networks that appeared earlier. Zcash is a prominent example, utilizing zero-knowledge proofs to conceal transaction information, allowing users to transfer funds without revealing addresses or transaction amounts. This design enables transaction verification without exposing personal data.

Recently, the market has seen renewed interest in security assets. Cardano’s Midnight(NIGHT) token increased by 6.53% in 24 hours, with a trading volume of $111.93 million. Although still lower than Zcash’s $679.52 million in trading volume during the same period, ZEC appreciated by 13.81%.

Midnight is a privacy-focused sidechain developed by Input Output Global, intended to add private transaction and smart contract capabilities to the Cardano ecosystem without altering the platform’s core structure. Strong community support and public statements from Charles Hoskinson have attracted significant attention to this project.

Notably, although Zcash and Midnight both apply similar cryptographic principles, they differ in deployment structure. Zcash operates as an independent security network, while Midnight is designed to integrate with an existing blockchain. Both demonstrate the robust development of security tools across various blockchain models.

Why Will the Security Era Shape the Future of Blockchain?

The security era has the potential to transform how developers and users approach blockchain technology. Security solutions enable sensitive data to remain confidential while ensuring transaction validity, creating a balance between privacy and transparency—an essential factor for expanding applications in finance and identity verification.

Srinivasan believes this shift will not yield immediate results but will be a long-term trend. He forecasts future systems will default to encrypting most user activities, leveraging zero-knowledge proofs to maintain verifiability.

Market data shows increasing interest in security projects, with high trading volumes reflecting investor attention. Developers will continue researching security features to meet legal requirements and user needs. Security will not replace elements like security and scalability but will add an important layer to system architecture.

In summary, the security era not only demonstrates efforts to protect users but also maintains the efficient operation of open networks, promising to be a major driver for blockchain development in the future.

Mr. Teacher