The software wallet is connected to an internet,so when it is connected to internet the wallet can be hacked.Like software wallet is hardware wallet can be hacked?Is it possible to hack?Is hardware wallet completely offline?
Everything is hackable. But I am using myetherwallet to protect my tokens and altcoins, i never used metamask wallet so i dont have idea about metamask. But there is no way to hack your MEW without leacking private key. If you incorrectly leak your private key in any scam website you wallet will be easily hack. So while using private key you should causious on that.