<p>You still have to include some PoW for every transaction you submit and verify 2 older transactions this way. So everybody is sort of a small miner.</p>

CC BY-SA 3.0
2017-07-03T19:51:36.743Z
2017-07-03T19:51:36.743Z
fiction
<p>I don't know if this is the best place to ask this, but I've been reading about an interesting cryptocurrency called IOTA which doesn't use a blockchain exactly but instead uses a directed acyclic graph.
<a href="https://www.iotatoken.com/IOTA_Whitepaper.pdf" rel="nofollow noreferrer">https://www.iotatoken.com/IOTA_Whitepaper.pdf</a></p>

<p>There also are no dedicated miners, but instead you have to validate other transactions in order to make transactions.  My question is the following:</p>

<p>If there are no dedicated miners, couldn't you get 51% of the computing power simply by making 51% of the transactions? And if so, isn't this a really big problem for the security of it?</p>

<altcoin><majority-attack><consensus><iota>
IOTA Security with Tangle
JacKeown
# IOTA Security with Tangle

(Asked by: username_0 on 2017-06-10)

I don't know if this is the best place to ask this, but I've been reading about an interesting cryptocurrency called IOTA which doesn't use a blockchain exactly but instead uses a directed acyclic graph.
<https://www.iotatoken.com/IOTA_Whitepaper.pdf>

There also are no dedicated miners, but instead you have to validate other transactions in order to make transactions. My question is the following:

If there are no dedicated miners, couldn't you get 51% of the computing power simply by making 51% of the transactions? And if so, isn't this a really big problem for the security of it?

**Tags:** altcoin, majority-attack, consensus, iota


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## 1 answers

### Answer by username_1 on 2017-07-03. Score: 2

You still have to include some PoW for every transaction you submit and verify 2 older transactions this way. So everybody is sort of a small miner.


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