Can someone explain me in a very simple way what should an attacker do to double spend in IOTA?
In the whitepaper I read that a double spend transaction should outweigh the legitimate subtangle. Supposing all transactions have the same weight, malicious transaction should be confirmed by more transactions than the honest one. Why doesn't spamming the network with a lot of transactions confirming the double spend work?
Why is the IOTA tangle said to be network-bound instead of hash power bound? Does it mean that i can issue enough transactions confirming the double spend because of weak proof-of-work but i will never be able to spread them across the nodes quickly enough because network is a bottleneck?