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According to my knowledge, blockchains like Bitcoin and Ethereum provide great DDoS-resistant infrastructure since transactions are broadcasted to the network through random paths/nodes.

But since IOTA allows manually assigning lightwallet servers, hackers can create malicious light nodes, point them to a particular server and raise tons of fake transactions in parallel to bring it down.

Did I miss something?

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The light nodes still have to compute POW for every transaction they want to introduce into the network, which should be limiting the impact of DDoS quite a lot.

On the other hand, there are nodes which are configured not to require POW (they will perform it themselves instead), and these nodes are very susceptible to DDoS attacks.

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