in that past hack we learn that we should only be careful with any "update" messages coming from strange links,that's how people got hacked and lost all their balance in the past,other than that its a almost perfect wallet for me.
That wasn't hacking, it was phishing. The servers displayed random messages that tricked users into doing certain actions. Hacking means breaking certain systems and defenses. If someone gains access to your Electrum wallet using the skills he has, that's hacking. If you give someone the required access credentials by entering your private data somewhere, download fake software, or get tricked into revealing information about yourself, it's phishing and social engineering.