What the heck? I was surprised to what happened by john. @jackleszz can you give some extra precautionary measures on how to secure our btc2 in our desktop wallet? LOL!, I don't want it to happen to everyone.
I also do not know much operating the desktop wallet.
AFAIK his didn't get stolen from a desktop wallet. He had done his masternode setup differently.
For desktops, the security advice is simpler. Just ensure no one else has access to your computer and don't install questionable programs on your computer. (As in keep it free from malware.)
You may also make offsite encrypted backups of your wallet.dat or private keys.