What should I do If My wallet or BTC gets hacked?
Obviously yes! You must take sufficient precautions if you have significant number of bitcoins in your holding. Hackers can attack anyone if they come to know a particular address holds a decent amount of bitcoins. So there are few steps you should follow,
1. Never keep all bitcoins in a single wallet. Always diversify. Use a mix of hardware wallet, Offline or online wallets, cold storage wallet to hold your bitcoins.
2. If you are earning bitcoins from various methods like signature campaigns or trading activities or Gambling, never use the same wallet address in all places. Never let your earnings go to a single place.
3. Never publicly display your main wallet address to anyone and never use it in any other purpose.
4. Always use a licensed version of operating system and Internet Security package. Keep both up to date.
5. Never trust anyone in the online market.
These are 5 basic steps that I follow in order to keep my bitcoins safe. Hope this helps!