Trezor warned customers on Wednesday that threat actors who breached its third-party email provider are targeting them in phishing attacks.

Cryptocurrency hardware wallet maker Trezor says an August data breach at its shipping and logistics provider, ShipMonk, affects an additional 67,000 U.S. customers.

Hardware wallet maker Trezor said a fake security alert claimed a hardware flaw could expose users’ recovery phrases.

Attackers exploit legitimate mailing channels to demand crypto wallet backups