who said this ? they think that exchanges are big and store  big money because people are trading in it especially if its a popular exchange but they dont know that big exchanges are the one that are being targeted the most by hackers . while i never seen a wallet company that have been hacked but except maybe to some wallet users only that are careless and are holding big funds at the same time because they are giving a motive for the hackers to attack them .  your post are useful op especially for the newbies

Some people stored their funds on a crypto exchange, which is not a good thing to do like a good bitcoin. Some people believe that their cryptocurrency is much safer in exchange than their crypto wallet, this concept is a big no for me, well, in fact, I always read some articles about a hacked exchange every week or months. It is much safer to store our money in our crypto wallet but the problem with it is that it is also vulnerable to being stolen by hackers.

We can prevent this thing from storing our private and public keys.
Just key terms to remember:
Transferring of funds
Public key - allows you to transfer funds into it
Private key - allows you to transfer funds out to it.

Exclusively
Public key - publicly known and important for identification
Private key - this should be secret, excluded only for two parties which are the receiver and the sender.

If you lose your public key, you can still access it using your private key and if you lose your private key you cannot access your fund anymore. Storing your private key is a really important thing to do whenever you want to secure your wallet. Do not store it on your device because any device ate prone to hackers. Use any strategies except online.

It is not good idea for the trader to hold or store their coins to the exchange wallet it is risky because there is more exchange hack and once you store it and your coins is in the exchanges site who is hack your money have chances to lose because the hacker have access to the system to withdraw the funds. The security of the coin is where you store it and how you hold it.