18 votes
Accepted

What happened at block 202612?

In short, someone managed to exploit a bug in the code, which produced a block that couldn't be validated by the nodes, there's a full analysis of the attack here, https://lab.getmonero.org/pubs/MRL-...
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16 votes
Accepted

How does the dynamic fee calculation work?

According to the pull request from moneromooo-monero on behalf of ArticMine: The dynamic fee is based on the block size in a past window, and the current block reward. It is expressed by kB. This ...
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11 votes
Accepted

August 2014 spam attack

You'll find an extensive analysis here. The tl;dr version is that the attacker exploited an obscure edge-case bug to fork the network. The fork was the intention and the net-effect. The devs promptly ...
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  • 609
9 votes
Accepted

How does the dynamic blocksize and the dynamic fees work together in Monero?

In addition to the excellent summary by ArticMine already given, here below is shortened & updated version of my research on the topic. Dynamic Blocksize Penalty This is the penalty which will be ...
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  • 19.8k
6 votes

What happened at block 202612?

Someone found a bug in a tree hash function, and managed to exploit it, resulting in an unresolvable fork in the chain. There is a full explanation from Tacotime: https://bitcointalk.org/index.php?...
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  • 34.6k
5 votes
Accepted

Is it viable to attack Monero by artificially bloating blocks and make it harder to run a full node due to the increased blockchain burden?

The largest size of the next block is limited to 2x the median size of last 100 blocks. Creating a block this large imposes a penalty equal to the block subsidy, so the miners entire revenue would ...
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  • 2,471
3 votes
Accepted

What is Monero's FloodXMR attack published in 2019 May and how can it be executed or defeated?

The "paper" you cite is full of inaccuracies and has been debunked, at length in other channels, such as this reddit thread. That should be the end of it. What is it exactly and how can one ...
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  • 17.4k

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