PROOF-OF-STAKE AND SECURITY
The threat of a 51% attack still exists on proof-of-stake as it does on proof-of-work, but it's even riskier for the attackers. A attacker would need 51% of the staked ETH
Currently only 8.3% of the total ethereum supply is staked ETH. You only need 8.31% to do a 51% attack. If the price continue
to fall, the network will become less secure..
That's not correct. Only the staked ETH will be validators. Just holding ETH in a wallet does not mean you would be validating transactions. You would either have to setup a 32 ETH validator or join a staking pool if you have less than 32 ETH to stake. IF you have 500 ETH and want to do solo staking you would have to setup fifteen 32 ETH validators. The remaining 20 ETH would have to be staked on a staking pool.
And currently 10% of ETH is staked, not 8.3%. It has increased.
You would need 51% of the 10% staked ETH to execute a 51% attack. There are over 300,000 validators. You would need to control more than 150,000 validators for a 51% attack. And doing this would mean your ETH could be slashed if you are a dishonest validator. Bye bye your funds.