Scammers target hundreds of thousands of crypto owners after Trezor confirms data breach of email provider
Third-party breaches at Trezor's email and shipping vendors exposed customer data, fueling phishing campaigns targeting hundreds of thousands of crypto wallet owners.
Trezor confirmed that a breach at Brevo, its marketing email provider, exposed customer contact data and let hackers send roughly 347,000 phishing emails claiming a fake 'STM32 Entropy Vulnerability' and asking victims for their wallet backup password. Brevo said attackers accessed 138 accounts by abusing overly broad, improperly scoped access privileges. Trezor was also hit weeks earlier by a breach at shipping partner ShipMonk that exposed names, phone numbers, email addresses, and postal addresses of at least 81,000 wallet buyers. Trezor stated its own products, wallets, and account systems were unaffected and warned customers to expect further phishing attempts.
Crypto customers targeted by scammers after email marketing provider breach
Attackers exploited a Brevo SAML SSO flaw to access 138 accounts and phish crypto customers of Trezor, CoinTracking, and BitBox.
An attacker exploited a flaw in Brevo's SAML SSO handling to access 138 customer accounts on September 10; six accounts were used to send phishing emails and contacts were exported from 43 accounts. Crypto firms Trezor, CoinTracking, and BitBox confirmed customers received phishing emails, with Trezor warning roughly 347,000 newsletter subscribers. The Trezor-themed email cited a fabricated STM32 microcontroller entropy bug and urged recipients to enter wallet backups through a malicious link. Exported contact lists could fuel future targeted phishing attacks.
Trezor customers hit with phishing calls and letters after shipping-partner breach
A breach at shipping partner ShipMonk exposed data for about 67,000 additional US Trezor customers, who now face phishing calls and QR scam letters.
SatoshiLabs, maker of Trezor hardware wallets, confirmed the August 2026 ShipMonk breach exposed names, emails, phone numbers, and shipping addresses for roughly 67,000 US customers who ordered between November 2019 and August 2021, on top of 3,889 customers affected initially. ShipMonk attributed the intrusion to attackers exploiting an SQLi zero-day in Metabase's Cloud SaaS platform and retained data past the 90-day deletion requirement. Trezor's own systems were not compromised; customers are reporting phishing calls and QR-code phishing delivered via physical letters.
SafePal latest crypto hardware wallet maker affected by breach, with nearly 40,000 impacted
SafePal confirmed nearly 40,000 customers' order data was stolen, the third hardware wallet maker breached in a month after Trezor and Coinkite.
SafePal confirmed a breach exposing names, emails, shipping addresses, phone numbers, and purchase details of customers who ordered between March 2, 2025 and April 11, 2026, caused by a flaw in an order-tracking plugin. The company stressed wallets, seed phrases, and private keys remain secure, and all impacted customers were notified by email. A hacker advertised the stolen data on a dark web forum, and SafePal warned of targeted phishing via fake support calls and refund offers. CertiK data cited in the report shows 52 wrench attacks worldwide in H1 2026 with $124 million in losses, up 33% year-over-year.
Multiple crypto companies warn customers of phishing emails after alleged provider breach
Attackers compromised 120 Brevo email accounts and sent convincing phishing emails to Trezor, BitBox, and CoinTracking newsletter subscribers.
Trezor, BitBox, and CoinTracking confirmed that phishing emails were sent to newsletter subscribers after a compromise of their shared email provider, which CoinTracking identified as Brevo. Brevo said an attacker accessed 120 customer accounts and used them to send phishing emails from legitimate company domains, including fake security alerts like 'Critical Security Alert: STM32 Entropy Vulnerability' and 'Data Breach Notice: Please refresh API Keys.' Trezor had already suffered a separate breach exposing details of 81,000 customers, and CertiK reports physical wrench attacks on crypto holders rose 33 percent year-over-year with $124 million in losses in 2026.