Too Long; Didn't Read
Polygon hopes to become the first aggregator of Ethereum scaling solutions while supporting multiple scaling solutions such as Layer 2 and sidechains. Currently, Polygon has a sidechain based on the Plasma framework and the PoS consensus mechanism, as well as two kinds of bridges supported. The security of the Bridge is of utmost importance because all assets are in custody in a Layer 1 smart contract. In this article, we will compare the security and other aspects of the respective bridges of Polygon and Layer 2 rollup solutions.