Hardware wallet maker Trezor disclosed a security flaw in a chip used in its new Safe 7 device but said customers’ crypto remains secure and no action is needed.

The issue affects “TROPIC01,” a security chip developed by Trezor sister company Tropic Square. The flaw was uncovered during an independent audit by Ledger’s security research team, Donjon, which used specialized laboratory equipment to bypass some of the chip’s protections, according to an emailed announcement Wednesday.

Tropic Square later identified a related weakness that could expose additional information stored on the chip. However, Trezor said the vulnerability does not give attackers access to users’ crypto holdings, private keys or wallet backups because the Safe 7…