"Everything will be exposed in 10 years"...Privacy Coins Helpless Against Quantum Computer Fear

▲ Blockchain, digital assets, privacy, smart contracts/AI-generated image

Privacy coins originated from a correct awareness of the problem, aiming to complement the excessive transparency of public blockchains. However, an analysis has emerged that they are structurally vulnerable assets in the face of regulation, tracking technology, and quantum computing risks. It is pointed out that privacy coins, which emerged in response to a structure where all payments, salaries, donations, and corporate transaction details are permanently revealed on a public ledger, are instead facing greater pressure over time.

Benzinga reported on May 21 (local time) that "privacy coins attempted to realize financial privacy, an early ideal of cryptocurrency," but "are currently facing pressure from three directions simultaneously: regulatory authorities, blockchain surveillance technology, and the long-term limitations of cryptographic technology." The article pointed out that while the auditability of public blockchains is an an advantage, ordinary users do not want all their financial activities permanently disclosed.

Zero-knowledge proofs were presented as a core technology for privacy coins. Zero-knowledge proofs allow the validity of a transaction to be verified without revealing sensitive information behind the transaction. Zcash (ZEC) was mentioned as an early example of applying such cryptographic privacy to a real currency network. The article assessed that the starting point for privacy coins was clear, in that public payment networks should not require the disclosure of a user's entire financial life.

However, the regulatory environment is moving unfavorably for privacy coins. This is because if traceability is blocked in the financial system, it becomes difficult to investigate crime, sanction evasion, fraud, and illegal money flows. Privacy coins with reduced access to regulated exchanges, even if they exist technologically, can be disadvantaged in terms of liquidity, price formation, custody, and institutional inclusion. The article pointed out that liquidity is also part of an asset, and the market structure of privacy coins pushed out of regulated exchanges could become thin.

The advancement of blockchain surveillance technology is also a burden. While privacy coins can hide transaction details and increase tracking costs, they cannot completely erase all signals. Users move through wallets, exchanges, bridges, browsers, IP addresses, and banking networks, and even if encrypted transactions themselves are strong, loose entry points can weaken anonymity. The article emphasized that privacy is not achieved solely by mathematical protection but depends on user behavior, tools, infrastructure, and operational habits.

Quantum computing has been identified as a variable that increases the long-term vulnerability of privacy coins. If future computers can break current public-key systems, signatures and wallets could be exposed, and privacy coins face an even sharper problem. In a structure where encrypted transaction data is permanently recorded on the chain, if the cryptographic system is broken in the future, past transaction details could be revealed retrospectively. The article warned that users might discover that the privacy they bought today was merely temporary concealment 10 years later.

Benzinga concluded that privacy coins should be viewed not merely as cryptocurrency tickers, but as a structural bet that simultaneously reflects regulation, liquidity, user behavior, the sustainability of cryptographic technology, and the demand for financial privacy. While the awareness that transparent ledgers expose too much information remains valid, privacy coins were classified as assets that require conviction while also having significant vulnerabilities, given that stronger privacy claims can lead to stronger pressure.

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