Cryptocurrency exchanges do not qualify for deposit insurance programs because exchanges are not savings institutions. Exchanges are not even meant to be cryptocurrency wallets.
However, no amount of security on our end can make up for inadequate personal security and when you create a Kraken account you agree to:
... (f) take responsibility for all activities that occur under
your Kraken Account and accept all risks of any authorized or
unauthorized access to your Kraken Account, to the maximum extent
permitted by law.
as is mentioned in our Terms of Service in section 3.2.
To protect the balance stored on your Kraken account, we suggest that you review all the account security tools and advice that we offer.