Security patterns

There are a few security patterns that ensure the security of funds in a contract. Using these patterns, you can improve the security of the contract. Using these patterns, you could eradicate common security issues in the contract. In the year 2018, there were more than $1 billion smart contract-related hacks. The patterns that we are discussing are built to avoid developers mistakes while developing smart contracts.

Let's look at some of the security design patterns.

Withdrawal pattern

The withdrawal pattern is also known as a pull-over-push pattern. In this pattern, ether or token transfer (push) from the contract is avoided; rather, the user is allowed to pull ether or token from the contract...