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At 21st Capital, we help Bitcoiners like you with securing your wealth.
As a short answer , Coinbase Bitcoin is simply an IOU. You’ll lose the coin if they default. We recommend a more secure setting including well-known hardware wallets such as ColdCard, nostr:npub1jg552aulj07skd6e7y2hu0vl5g8nl5jvfw8jhn6jpjk0vjd0waksvl6n8n Jade and nostr:npub1tg779rlap8t4qm8lpgn89k7mr7pkxpaulupp0nq5faywr8h28llsj3cxmt .