Quote from: BurtW on July 08, 2019, 11:08:30 PM

Currently not an issue for those that use proper secure random full entropy 256 bit private keys even if the attackers use "cool equipment and leading programmers".

These keys still have 128 bits of security even with the current search algorithms. The current record on this thread is 100 bits which leaves 128 - 100 = 28 bits of headroom.

Assuming 115 bits is possible then that still leaves 128 - 115 = 13 bits of headroom.

If you want your coins to be more secure than that then use a standard 160 bit Bitcoin address and never reuse your Bitcoin addresses.

If you want even more security then use a 256 bit Bitcoin address and never reuse your Bitcoin addresses.

You are off with the numbers.
Security is 128 bit for 256 bit public keys, and 50 bit for 100 bit pk.
So the security headroom is 128-50 = 78 bits.