Sort:  

I’m assuming you understand that massive ownership of bitcoin does you absolutely nothing to conduct a 51% attack.

With that said, I’d encourage you to read up on the 51% attack’s feasibility, and what such an attack could even accomplish if successfully implemented. Here’s a good start:

https://learncryptography.com/cryptocurrency/51-attack

Coin Marketplace

STEEM 0.19
TRX 0.13
JST 0.029
BTC 58000.61
ETH 3105.20
USDT 1.00
SBD 2.42