Timeline for How much would it cost to execute a 51% attack?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2017 at 12:47 | history | edited | CommunityBot |
replaced http://bitcoin.stackexchange.com/ with https://bitcoin.stackexchange.com/
|
|
| May 29, 2015 at 18:05 | comment | added | hamboy | With the 2014 US NIP budget of ~$50B/year, or ~$137M/day, this would take around 0.06% of the US intelligence budget to pull off. | |
| Sep 26, 2011 at 21:27 | comment | added | Chris Rico | As far as I can tell the only rational reason is to attempt to destroy Bitcoin. | |
| Sep 20, 2011 at 14:32 | vote | accept | David Perry | ||
| Sep 16, 2011 at 18:47 | comment | added | Ken Simpson | A related point is: why bother mounting such an attack? If you were indeed successful and started building your own block chain, then confidence in Bitcoin would plummet and investors would sell out their positions (assuming their positions could be sold out). The price would drop through the floor and the value of your exploit would be reduced to nothing. | |
| Sep 16, 2011 at 18:45 | comment | added | Ken Simpson | Impressive numbers. I think it's also important to include the costs of storing these computers somewhere. They'll need to be racked in a datacenter. The monthly cost of a rack is pretty much never below $700/month, and you'll need a huge number of racks for 12,897 computers - particularly if they're the type that can accommodate four full size PCI cards. | |
| Sep 16, 2011 at 13:18 | history | edited | nmat | CC BY-SA 3.0 |
It was David's quote
|
| Sep 16, 2011 at 4:36 | comment | added | David Schwartz | I think you could get system power, exclusive of the GPUs, down to 80 watts. Also, FPGAs have a better hash/watt, but the initial cost is much higher so the overall numbers will likely be worse. | |
| Sep 16, 2011 at 3:15 | history | answered | David Perry | CC BY-SA 3.0 |