What is the best methods to protect altcoin from hacker?
Anything on the web are vulnerable on hackers attack. This includes tokens and coins in our online wallets. But to get rid of it take some safety measures for yourself, first, dont ever entertain any email that contains links that maybe a phising site and also never ever let your private key known by other users or leave it unattended ( posting it in any thread or put it in wallet address box).
to keep Altcoin very profitable. because indeed Altcoin is indeed very capable to generate much greater profits. it would be nice to have a profitable Altcoin, so it would be great to keep it. I keep the coin by storing it in my wallet to secure it.