Since i joined the crypto world i didnt face any problem regrading wallets but i see that many people lose funds...somtimes the situation is normal like when somone share his private key or back up phrase in a scam website...but lets imagine that somone open a nwe wallet on trust and start using it without even keeping the phrase...is there a way to enter his wallet and make transactions without even having the back up phrase?
We must never disregard the ingenuity of hackers, one very old way in which something like this can be achieved is by replacing the contents of your copy and paste, most people do not check that the address they are about to send a transaction is the correct one, so a hacker could replace that information by using a virus and then when you send your coins the hacker gets the coins instead of the intended receiver.
At that point even if you use a password for your transactions then the hacker will know that information as well and then send all the money in that wallet to himself, and all of that can be done without the need to know the private keys or any backup phrase.