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+## Notes on DDoS attacks on the context of blockchains
+
+<br>
+
+### Failed Call
+
+<br>
+
+* [DDoS with Failed Call](https://swcregistry.io/docs/SWC-113)
+
+
+<br>
+
+### Block gas limit
+
+<br>
+
+* [Block gas limit by SWC registry](https://swcregistry.io/docs/SWC-128)
+* [Gas limit and loops on Solidity docs](https://docs.soliditylang.org/en/latest/security-considerations.html#gas-limit-and-loops)
+* [External Calls without Gas Stipends]()
+
+
+<br>
+
+### Learning references
+
+<br>
+
+* [Sigma Prime post](https://blog.sigmaprime.io/solidity-security.html#dos)
+* [Not so smart contract](https://github.com/crytic/not-so-smart-contracts/tree/master/denial_of_service)