http://trezoriovpjcahpzkrewelclulmszwbqpzmzgub37gbcjlvluxtruqad.onion/faqs
In emergencies (although not recommended), it is possible to use the seed to recover your funds using a hot wallet. If Trezor did go out of business, neither your crypto nor your private and public keys would disappear. ☉ Supported coins Trezor supports hundreds of coins and tokens including Bitcoin, Monero, Litecoin, Dash, Zcash, Bitcoin Cash, Bitcoin Gold, Ethereum (+ all ERC20 tokens), and Ethereum Classic.