What it does
A seed phrase controls wallet recovery. Anyone with the phrase may be able to access the funds, so it should never be shared, photographed or stored casually online.
Why it matters
Seed phrases are central to self-custody. They give users control, but also responsibility for security and backup.
Common mistake
Do not treat Seed phrase as a universal rule. Exchanges, wallets and card apps may use the same term differently, especially around limits, fees, networks and account restrictions.
User action
Before relying on this term, check the provider's official help page, fee schedule or product terms. If funds are involved, test with a small amount first and keep a record of the transaction or setting.
Related pages
Compare crypto wallets and read about self-custody.
How to use this term
Use seed phrase knowledge before moving funds into self-custody.
What to check
Check that the phrase is stored offline, backed up safely and never typed into random websites, bots or support chats.