Blast stated on social media that security involves multiple aspects, including smart contracts, browsers, and physical security. Immutable smart contracts are generally considered more secure, but may bring greater risks, especially in complex protocols. Upgradeable contracts are important, as they provide solutions for vulnerabilities, despite the potential for loopholes. Each signature key in the multi-signature setting is independently secure, stored in cold storage, managed by independent parties, and dispersed geographically. This approach aims to enhance the protocol's ability to resist various security threats. They plan to switch one of their multi-signature addresses to a different hardware wallet provider within a week to enhance security. This is to prevent reliance on a single type of hardware wallet, thereby reducing the risk of damage due to specific hardware vulnerabilities.

In just four days since its launch, the Blast network has accumulated over $400 million in total value locked (TVL), according to DeBank. However, concerns have been raised by a developer relations engineer at Polygon Labs, Jarrod Watts, who claims that the network's security risks are due to centralization. Watts argues that the Blast network is less secure and decentralized than users realize, as it is just a 3/5 multisig. The Blast team has responded to the criticism, stating that the network is as decentralized as other layer-2s, including Optimism, Arbitrum, and Polygon, and that user funds are kept in cold storage managed by an independent party and separated geographically. However, the network has faced criticism for having upgradeable contracts, which was also a problem seen in the Stargate bridge, and was exploited in December 2022 when a former employee hacked into the developer's database to upgrade the smart contract and create 20 trillion Ankr Reward Bearing Staked BNB.

Layer2 cross-Rollup bridge Orbiter Finance has announced the introduction of O-Points to track user contributions. Orbiter Finance is currently running cross-chain activities on Linea, and will later convert user historical contributions (NFTs, OATs, Galxe loyalty points, etc.) into O-Points.

Farokh stated on social media that an unidentified whale deposited 10,000 ETH into the L2 network Blast, attracting attention.

On November 23rd, according to DeBank data, the Blast contract address on the Layer2 network currently holds assets worth over $300 million. Among them, $257 million worth of ETH is deposited in the Lido protocol, $41.65 million in assets are stored in the Maker protocol, and approximately $1.48 million is in the wallet.

According to data released by Nansen, the Blast TVL on the L2 network has exceeded $150 million, achieving this goal in less than 2 days. If this growth continues, they will surpass Cardano in terms of TVL this weekend.

According to DefiLlama data, Blast TVL broke through $100 million today and has now reached $113 million.

November 21st, according to The Block, Layer2 network Kinto has migrated to the Arbitrum ecosystem through the Arbitrum Nitro technology stack. This migration was carried out after the structure of the Arbitrum Orbit chain ecosystem changed, giving the Arbitrum Foundation greater autonomy in negotiating Layer2 deployments.<br>Kinto stated that it can support modern financial institutions and decentralized protocols by building Layer2 that complies with KYC standards. It also aims to reduce the risk of DeFi vulnerabilities and provide built-in insurance for all smart contracts.

On November 21st, Blast, a Layer 2 network based on Optimistic Rollup, completed a $20 million financing round. This round of financing was co-founded by Paradigm, Standard Crypto, eGirl Capital, and Mechanism Capital, with several angel investors including Andrew Kang, co-founder of Lido, Hasu, strategic advisor of Blur, and Larry Cermak, CEO of The Block.

Loopring, an Ethereum Layer2 solution, began releasing multiple fake "airdrop" information on X platform 3 hours ago. The account is suspected to have been hacked and is publishing phishing links.