Vitalik Buterin emphasizes the importance of encryption privacy for local AI agents, which can prevent the leakage of user behavior during API calls. He mentioned that hybrid networks can initially hide behavior, but service providers need to implement anti-DoS mechanisms, and payment processes involve tracking risks. Encryption technology can effectively protect user privacy.

Odaily News Regarding the community's discussion on "Ethereum still setting a contract size limit", Vitalik Buterin responded that it is due to DoS risk considerations. He stated that once Ethereum's state structure is upgraded to a unified binary tree (EIP-7864), it is expected to achieve unlimited contract size, but the Gas fees and mechanism design for publishing super large contracts still need to be addressed. Currently, based on the cost of creation per byte, the actual contract limit is approximately 82KB.

The Prysm development team recently released an after-action report detailing the mainnet anomaly that occurred after the Fusaka upgrade on December 4, 2025. The issue once threatened the stability of the Ethereum network but was ultimately resolved thanks to the diversity mechanism of client implementations. The report indicates that the problem occurred at epoch 411,392 (December 4 at 21:49 UTC) after the Fusaka upgrade was activated. Prysm consensus clients, when processing certain proof data, triggered大量历史状态的重复计算, leading to rapid exhaustion of CPU and memory resources, causing nodes to experience denial-of-service (DoS)-style performance degradation. This was not a protocol design flaw but an implementation issue within clients under specific boundary conditions.

BlockBeats news, on November 27, Vitalik Buterin published an article stating that end-to-end encryption communication is crucial for privacy protection, emphasizing that the next key step in this field is to support permissionless account creation and metadata privacy, and mentioned that Session and SimpleX are advancing in these directions. He donated 128 ETH to each, while pointing out that decentralization, metadata protection, multi-device support, and Sybil/DoS resistance are still challenges that require more developers to invest in improving such privacy communication tools.

Odaily News Ethereum co-founder Vitalik Buterin and Toni Wahrstätter jointly proposed EIP-7983, suggesting that the gas limit for a single Ethereum transaction be set at 16.77 million (unrelated to the block gas limit). The aim is to enhance the network's resistance to DoS attacks, alleviate issues related to uneven load, state bloat, and block verification latency caused by high gas transactions, while optimizing.

Odaily Planet Daily News Nexus X stated that Nexus Orchestrator is dealing with a large number of requests and DoS attacks. The team is making every effort to keep the network open. Please follow the follow-up developments.

European Central Bank Vice President Kintos said that inflation is close to the 2% target, and the Intrerest Rate will depend on whether the data supports a sustainable trend, but there are still uncertainties, such as geopolitical situations. Kintos also said that evaluating the threat of US President Trump's economic policies to the inflation target is more difficult.

PANews February 1st news, according to official sources, the IoTeX network has recently experienced network instability caused by DoS attacks, which has now been restored. IoTeX L1 has completed the upgrade to version 2.1.2, which introduces a single account rate limit to protect Nodes from DoS attacks. This upgrade is not a hard fork, but IoTeX officials still recommend Node operators and API