<p>There are some pools that reroute the computational power, depending on where they can make the most money, i.e., they maximize their utility for a fixed amount of hashing power. Apparently the huge influx of computational power triggered these automatic coin choice pools to switch to the Feathercoin network, which again triggered more pools to switch.</p>

<p>In the end, the attacker not only had to fight against the computational power of FC, but also had to deal with the power coming from those pools, which proved to be too much, and he lost his majority.</p>

CC BY-SA 3.0
2013-06-10T12:33:13.467Z
2013-06-10T12:33:13.467Z
cdecker
<p>Referenced in <a href="http://forum.feathercoin.com/index.php?PHPSESSID=8v9mqrjne7iroo9kodtj8hhqd4&amp;topic=1463.0" rel="nofollow">this thread</a> about a 51% attack on feathercoin.</p>

<blockquote>
  <p>This would have been a hell of a lot worse without automatic coin
  choice pools. They routed a ton of hashpower at FTC. This broke the
  attacker's control of the blockchain.</p>
</blockquote>

<mining-pools><majority-attack>
What are "automatic coin choice pools"?
ripper234
# What are "automatic coin choice pools"?

(Asked by: username_0 on 2013-06-10)

Referenced in [this thread](http://forum.feathercoin.com/index.php?PHPSESSID=8v9mqrjne7iroo9kodtj8hhqd4&topic=1463.0) about a 51% attack on feathercoin.

> This would have been a hell of a lot worse without automatic coin
> choice pools. They routed a ton of hashpower at FTC. This broke the
> attacker's control of the blockchain.

**Tags:** mining-pools, majority-attack


---

## 1 answers

### Answer by username_1 on 2013-06-10. Score: 1 | Accepted answer

There are some pools that reroute the computational power, depending on where they can make the most money, i.e., they maximize their utility for a fixed amount of hashing power. Apparently the huge influx of computational power triggered these automatic coin choice pools to switch to the Feathercoin network, which again triggered more pools to switch.

In the end, the attacker not only had to fight against the computational power of FC, but also had to deal with the power coming from those pools, which proved to be too much, and he lost his majority.


---

