Swiss Bitcoin payments have been suspended due to a security breach
Swiss Bitcoin Pay, a provider of cryptocurrency payment solutions, announced on Monday that it would offline all its servers. The move stems from a security incident that sparked public concerns and suspected intruders had access to its internal systems.
Security vulnerabilities and countermeasures
The company said that during the attack, email addresses, Bitcoin addresses, bank IBAN numbers, transaction records and hashed user passwords may have been compromised. Despite the risk of exposure to sensitive data, Swiss Bitcoin Pay assured customers that this incident did not put any funds at risk.
Swiss Bitcoin Pay issued an announcement through its official X account, saying that the full scope of the vulnerability has not yet been determined. As a precautionary measure, the company decided to disable the server while the investigation continued. So far, the company has not disclosed the number of customers affected, how the attacker obtained access, nor has it said whether the documents were extracted or only viewed. In addition, the company has not yet provided a timetable for restoring services.
Swiss Bitcoin Pay emphasized that due to its unmanaged architecture, attackers cannot access customer funds. The payment process flows directly from customers to merchants and is isolated from the company's internal systems. However, in subsequent X platform updates, the company admitted that it would temporarily hold a small user balance. This typically occurs when Lightning Network payments are aggregated into bulk transactions to be sent through a single on-chain operation that is performed once a day, week, or month.
The company clarified that although this operating feature can lead to the temporary storage of customer assets, no unauthorized Bitcoin transactions related to the vulnerability have been found.
Mini Dictionary: Lightning Network is a layer of protocol built on top of Bitcoin that enables fast and low-cost transfers by processing off-chain payment channels and settling aggregate transactions only on the main blockchain.
Potential impact on users
Digital security experts have warned that the combination of stolen email addresses, Bitcoin addresses, bank IBAN numbers, transaction records and hashed passwords poses a significant risk for targeted phishing attacks. Security analyst Pasquale Pillitteri pointed out that when combined, these identifiers form "textbook material for tailor-made phishing attacks."
Another risk is that attackers could associate Bitcoin addresses with real names, which could compromise privacy and allow users to trace their on-chain transaction history.
Recent high-profile leaks in the digital asset field have heightened user concerns about data security. For example, Blockstream's Liquid network was recently affected by an exploit that resulted in the theft of nearly 4000 BTC units. In another case, Japan's Digital Agency reported that 246,000 employees and contractors had data leaked, including names, email addresses and phone numbers. Hardware wallet company Trezor also suffered a data breach that exposed customers 'purchasing and delivery information, while flaws in the SafePal order-tracking plug-in affected nearly 40,000 users. Swiss Bitcoin Pay did not attribute its incident to known vulnerabilities or exploits in these early cases.

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