Obviously it matters.
It matters everywhere from banking transactions to crypto money transfer. Bcoz one mistake or wrong detail could be result of losing your all wealth health n happiness. You will lose all your money, your girlfriend , your party holic friends😀😀🤣
So, it does matters.
So, better to protect and use it by 2factor google or other Authenticator , use good exchanges, private key 12-15 words written in blank paper and put it in a locker.
Thanks. 👍🏻👍🏻