Coinbase is somewhat safe, as safe as any online wallet. They are insured, so supposedly in case of a hack you would get your money back, provided you had printed off your documents .
Read moreIs it safe to leave Bitcoin in Coinbase wallet?
While it is never 100% safe to keep your money on any online exchange, Coinbase has one of the safest web wallets you can use since it holds 98% of its assets in offline cold storage that cybercriminals cannot access.
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