Yes, Sable is legit. The bank offers up to $250,000 in FDIC Insurance through Coastal Community Bank for your banking accounts. Your debit and credit card purchases are eligible for zero liability protection for fraudulent transactions. The banking app even lets you lock your spending cards as an additional security measure. To prevent data breaches, the app also supports fingerprint ID to prevent unauthorized logins. Plus, it uses the third-party app Plaid to connect to your external bank accounts to transfer funds.