The answer
Not necessarily; business continuity may require transaction approval controls, succession planning, segregation of duties and backup testing.
What to do next
Document custody policies and approval procedures in addition to storing the device securely.
Trezor hardware wallets
Potential cold-storage product; not a substitute for safe backup procedures. Availability, supported assets and local eligibility must be checked before signing up or buying.
Visit Trezor hardware wallets ↗Official provider link · Compare suitability and availability before choosing.