Bitcoin, easier to trade and store, besides providing security.
Only if your computer isn't full of virus/trojans/worms. You can't actually say that your PC is secure. There might be a key logger on your computer and don't even know it. I believe the cyberworld is full of scammers and hackers, anytime you can become a victim by one of them. I think in terms of security, gold is better. Your PC is just so exposed to the Internet and there are tons of exceptional hackers out there just watching us.