Disclosure: The views and opinions expressed here belong solely to the author and do not represent the views and opinions of the crypto.news main article.
Let’s bury a tired story: blockchains are the Wild West of the internet, a digital frontier beyond the reach of the law. When Deutsche Bank — a giant of the modern financial world worth about $32 billion — announced its own layer 2 network late last year, it confirmed what many of us have known for a long time. Traditional finance isn’t fighting the blockchain revolution; it tries to use it and tame it. The challenge, as Deutsche Bank is discovering, lies in reconciling the radical transparency of public ledgers with the discretion that serious money requires without returning to the permitted network route.
With its own purpose-built blockchain, the bank aims to develop solutions to regulatory compliance issues that banks and other financial institutions face when working with public blockchain networks. A key challenge is to ensure that they do not inadvertently transact with bad actors or entities under sanctions. A problem that will only increase as global assets move up the chain.
The numbers tell their own story. With Bitcoin (BTC) reaching six figures and the broader crypto market valued at over $3 trillion, blockchain’s move from the fringe to the mainstream is not only complete, but irreversible. Gone are the days when on-chain transactions were effectively invisible, simply because few had the tools or inclination to look. Today’s blockchains are greenhouses under constant surveillance and scrutiny by a growing army of analysts armed with increasingly sophisticated tools.
Regulators have, predictably, taken notice. By 2024, every major financial center, from Singapore to Switzerland, will have established dedicated crypto crime units. The EU’s new anti-money laundering authority, operational since June, objectives to keep a close eye on crypto asset providers. Other jurisdictions are rushing to follow Brussels’ example.
Privacy does not mean complete anonymity
Many early Bitcoiners, such as Hal Finney, were prominent figures in the fields of privacy and cryptography. Now that the space has been professionalized and financialized, this has certainly become less the case. But when we see crypto’s past and present in conflict, we fundamentally misunderstand what we mean when we talk about privacy. In 1993 Cypherpunk Manifestowrote Eric Hughe that “privacy is the power to selectively reveal oneself to the world.” To not completely hide from it.
The answer in practice is “smart privacy,” a form of selective disclosure that allows organizations and individuals to choose exactly what information they share and with whom. Unlike previous privacy solutions that offered only binary choices – full transparency or total opacity – smart privacy uses trusted execution environments (TEEs) to enable customizable confidentiality within blockchain applications.
Through our confidential EVM chain called Sapphire, developers can designate certain smart contract and transaction data as confidential while other elements remain public, all secured by hardware-based encryption that ensures data remains private even during processing. This is not theoretical: it is already being used. Beyond web3, major tech companies are already deploying TEEs at scale, with Apple using Secure Enclave technology in their Private Cloud Compute nodes to secure AI processing and NVIDIA deploying hardware-based TEEs in their H100 GPUs to protect both AI models and sensitive data during computations.
This evolution in privacy architecture reflects broader shifts in institutional thinking. Where banks once viewed blockchain transparency as an insurmountable obstacle, they now see customizable disclosure as the key to unlocking its potential. It’s a subtle but crucial distinction: the goal is not to cover up information wholesale, but to develop systems that can distinguish between necessary oversight and unnecessary disclosure.
Crucially, this approach differs from the anonymity tools that are overseen by regulators. Smart privacy is not about obscuring identity or ownership, but about enabling legitimate business and personal privacy in an increasingly digital world. When a company processes payroll via a blockchain, their employees would not have to disclose their salaries. When someone makes a routine purchase, they don’t have to make their entire transaction history public. It’s about providing authentication without vulnerability; trust without total exposure.
Selective disclosure as a public good
This selective disclosure is not only good theory, but also good practice. When blockchain sleuths traced the Harmony Bridge hacking Last year, after $100 million through a labyrinth of transactions, they showed why transparency is important. And yet the same radical openness that helps catch criminals can endanger legitimate businesses. Every transaction on a public blockchain exposes a potential trade secret and gives up a competitive advantage. Just ask the institutional traders whose positions are routinely managed by bots that monitor their every move.
The answer is not to retreat into the shadows, but to build smarter systems. Confidential computing tools like TEEs or cryptographic tools like zero-knowledge proofs enable selective disclosure protocols that provide a middle ground: verification without exposure. A bank can prove that it meets capital requirements without disclosing its entire balance sheet. A trader can demonstrate compliance with anti-money laundering rules without disclosing its strategy to competitors. This isn’t about putting up walls; it’s about installing doors with the right locks.
The crypto industry’s early rallying cry of “don’t trust, verify” was never meant to mean “verify everything, always, by everyone.” What we need is targeted transparency: visibility where it serves the public interest, and privacy where it protects legitimate interests. The technology exists. What is needed now is the regulatory framework to embrace this.