Bitcoin storage

It's generally recommended to move your bitcoin off online exchanges and into your own secure wallet, for several reasons:

Security

• Exchange risks: Exchanges can be vulnerable to hacking or other security breaches. There have been cases in the past where exchanges were compromised, resulting in users losing bitcoin.
• Your own wallet: When you hold your private keys in a personal wallet, you control the security measures — for example by using hardware wallets, which are generally considered more secure than online exchanges.
• Make sure to back up your recovery words / seed phrase. Read more here: Recovery words / seed phrase

Ownership and control

• When your bitcoin is on an exchange, you technically don't own the private keys to your wallet — the exchange does. That means you're trusting the exchange to safeguard and manage your bitcoin correctly. By moving your bitcoin to your own wallet, you gain full ownership and control.

Privacy

• Exchanges usually require identity verification, and your transactions on the exchange are tied to your identity. By using your own wallet, you can maintain a higher degree of privacy and anonymity, since Bitcoin transactions are generally pseudonymous.

Avoid exchange problems

• Exchanges can run into technical issues, regulatory problems, or other challenges that may temporarily or permanently affect your access to your bitcoin. Having your own wallet eliminates this risk.