French authorities have opened a preliminary investigation into an information breach at Waltio, a cryptocurrency tax reporting platform utilized by tens of 1000’s of buyers.
This occurred when hackers reportedly acquired entry to delicate person data and tried to blackmail the corporate.
The occasion has introduced up new points concerning the publicity of private knowledge within the crypto business, as goal fraud and bodily assaults in opposition to holders have gotten increasingly frequent in France.
Authorities Hyperlink Waltio Breach to Shiny Hunters’ Extortion Try
In a press release launched this week, French cybersecurity establishments confirmed that, through its cybercrime division, the Paris Public Prosecutor’s Workplace had issued an order to the Nationwide Cyber Unit of the Gendarmerie to ascertain the extent of the breach and determine uncovered customers.

Officers suggested that customers whose data might need been stolen needs to be cautious of scammers who declare to be real service suppliers or different officers and drive them to surrender their digital property utilizing the stolen data.
The regulation enforcement businesses reported that some more moderen fraudsters posed as crypto companies, financial institution anti-fraud items, and even regulation enforcement officers and magistrates.
French newspaper Le Parisien acknowledged that the assault at Waltio was related to a ransom demand by a hacking group known as Shiny Hunters.
The group purportedly had obtained private data of roughly 50,000 Waltio customers, most of whom reside in France, and stated it had samples of the stolen data as proof.
Waltio later filed a grievance of tried extortion and unauthorized entry to the automated knowledge system.
Waltio stated its preliminary inner evaluation confirmed that the attackers accessed tax studies for the 2024 interval. These paperwork included customers’ e mail addresses, data on crypto earnings or losses, and asset balances on the finish of the yr.
The corporate acknowledged that banking particulars, administrative information, and tax identification knowledge weren’t affected and that its core infrastructure was not compromised.
Waltio added that its providers stay operational and that consumer funds will not be in danger.
France Tightens Oversight After Crypto Knowledge Breach Amid Rise in Kidnapping Instances
Waltio was based in France and is headquartered in Clermont-Ferrand. It serves roughly 150,000 customers and focuses on simplifying crypto tax compliance for European buyers, notably in France, Spain, and Belgium.
The platform aggregates transaction knowledge from greater than 700 exchanges, wallets, and blockchains to calculate capital features, losses, and staking earnings, and generates tax-compliant studies for native filings.
The investigation comes amid heightened scrutiny of crypto-related knowledge leaks in France.
Within the final yr, police have attributed a variety of dwelling invasions, kidnappings, and tried kidnappings to the criminals who meant to make use of the data of the victims having digital property.
Though the leakage of information has not been instantly linked to those crimes, the investigation groups haven’t eradicated the possibilities of the information getting used to ascertain potential targets.
Masked gunmen steal crypto USB in France as prosecutors reveal tax official bought authorities database entry figuring out crypto buyers to legal gangs for 800 euros per operation.#Crypto #Assault #Francehttps://t.co/GmfOkwsE6E
— Cryptonews.com (@cryptonews) January 9, 2026
Fraud victims have been cautioned to maintain proof, report back to the police, and tackle the information safety authority in France in situations the place they really feel that their private knowledge has not been sufficiently safeguarded.
The Waltio incident isn’t the primary case of information publicity within the crypto business previously.
{Hardware} pockets producer Ledger introduced earlier this month {that a} breach of a third-party fee processor, World-e, came about, exposing the information of its clients.
Final month, crypto tax software program developer Koinly additionally notified customers of a possible e mail knowledge breach associated to the usage of a third-party analytics platform.
The publish French Crypto Tax Platform Waltio Hit by 50,000-Consumer Knowledge Breach appeared first on Cryptonews.
Masked gunmen steal crypto USB in France as prosecutors reveal tax official bought authorities database entry figuring out crypto buyers to legal gangs for 800 euros per operation.#Crypto #Assault #Francehttps://t.co/GmfOkwsE6E