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Polkadot posted on X that OpenGov is voting on significant changes to the network staking architecture. Referendum 1890 proposes that validators on Polkadot must lock at least 10,000 DOT as self-staking.This reform is a mandatory prerequisite for the next phase of staking upgrades, which include immunity from slashing for nominators and quick unbonding (approximately 24-48 hours instead of 28 days). The logic is to allow validators to absorb slashing risks directly through significant self-staking exposure, while nominators can continue to earn staking rewards without exposing their principal. If passed, Polkadot staking will eliminate two major barriers to participation, thereby reducing the risk for nominators and shortening exit times.

According to on-chain analysis platform Arkham (@arkham), attackers exploiting the Bridged Polkadot vulnerability have transferred all stolen funds into Tornado Cash, involving an amount of approximately $269,000.

Polkadot stated on the X platform that the team has noticed security issues with the Ethereum gateway contract of Hyperbridge. This vulnerability only affects DOT tokens bridged to Ethereum via Hyperbridge, while DOT within the Polkadot ecosystem and other bridging solutions are not affected. Polkadot and its parachains and native DOT remain secure. Hyperbridge has suspended operations during the investigation.According to previous news from ChainCatcher, the Hyperbridge contract encountered an MMR proof replay vulnerability, resulting in a loss of approximately $242,000.

Polkadot responded to the Hyperbridge vulnerability incident, stating that the vulnerability only affects DOT assets bridged to the Ethereum network via Hyperbridge and does not involve native DOT within the Polkadot ecosystem or assets from other bridging paths. The official statement indicated that the Polkadot mainnet and its parachains are operating normally, and related assets remain secure.Currently, Hyperbridge has suspended operations, and the incident is under further investigation. Previous reports indicated that the Polkadot bridge vulnerability was exploited, resulting in the issuance of 1 billion DOT on the Ethereum network, which has been sold off, with the attacker profiting $237,000.

Due to the detection of a security incident involving Polkadot, Upbit has immediately suspended the deposit and withdrawal services for Polkadot (DOT) and its AssetHub Polkadot network.Upbit will collaborate with the project team to ensure asset security and will notify users of the resumption time once the stability of deposits and withdrawals is confirmed. During the service suspension, the deposit refund and withdrawal address registration processes will also be paused.

According to monitoring by Pidun, 1 billion DOT tokens were abnormally minted and sold on the Ethereum chain.On-chain data shows that about 1 hour ago, the attacker transferred the contract control to a malicious address by tampering with administrator permissions, subsequently minting 1 billion DOT and immediately selling them, causing the coin price to plummet from $1.22 to nearly zero.The incident is still unfolding, and Polkadot's official response has not yet been released. The target of this attack was bridging assets on Ethereum, not the native Polkadot chain.

Polkadot announced on platform X that its token issuance model upgrade has officially taken effect. This protocol update will introduce several key adjustments, including setting the maximum supply of the native token DOT to 2.1 billion tokens, with approximately 80% of the tokens already issued. At the same time, the issuance rate of DOT will be reduced by about 53% in one go, with plans to continue gradually lowering it in the future.It is reported that the above adjustments were proposed by the community and approved through the OpenGov governance mechanism, aiming to maintain the network's incentive mechanism while limiting the long-term issuance scale and providing the market with a more transparent and predictable token issuance path.

21Shares, an asset management company, has launched the first spot Polkadot ETF in the U.S., with the ticker symbol TDOT, which has begun trading on Nasdaq. Eric Balchunas stated that the ETF has an initial seed capital of $11 million and a management fee of 0.3%. Spot crypto ETFs allow investors to bet on price movements without directly holding the digital assets.21Shares stated that Polkadot is a blockchain network designed to connect multiple independent blockchains and enable interoperability. Currently, its native token DOT has a market capitalization of approximately $1.7 billion. Previously, 21Shares has launched spot ETFs tracking the prices of assets such as Bitcoin, XRP, Solana, Dogecoin, and Sui.

According to The Block, crypto fund issuer 21Shares has launched the first spot Polkadot ETF in the U.S., with the ticker TDOT, which is now listed on Nasdaq.Bloomberg senior ETF analyst Eric Balchunas stated that the fund has an initial size of approximately $11 million, with a management fee of 0.3%. This product provides investors with a tool to track the spot price of Polkadot (DOT) without the need to hold the tokens directly. 21Shares has previously issued several spot crypto ETFs, including Bitcoin and altcoin products like XRP, Sui, Solana, and Dogecoin, with its XRP fund having a management size of approximately $174 million. The current price of DOT is about $1.47, with a total market capitalization of around $1.7 billion.

Bloomberg senior ETF analyst Eric Balchunas posted on the X platform that, according to disclosure information, the first spot Polkadot ETF launched by 21Shares in the U.S. market has a fee rate of 0.3%, with initial seed funding of approximately $11 million.In the product description, 21Shares stated that what makes Polkadot unique is its aim to connect multiple independent blockchains into a single interoperable network, allowing developers to build and run their own customized blockchains on it.

According to official news, 21Shares US announced that its Polkadot spot ETF------21Shares Polkadot ETF (stock code: TDOT) will be listed on Nasdaq tomorrow.

Polkadot will implement several changes starting from March 12, 2026, including a new DOT issuance model, the introduction of a Dynamic Allocation Pool (DAP), and adjustments to staking, budget allocation, and network security mechanisms.The proposal sets the total supply cap of DOT at 2.1 billion; it introduces a Dynamic Allocation Pool (DAP) to replace the original treasury destruction mechanism, depositing transaction fees, Coretime sales revenue, and slashing funds into a permanent account for dynamic budget allocation; 13.14% of the remaining supply will be issued every two years, with the initial issuance amount reduced by 53.6% compared to the current model.In addition, the staking mechanism will also undergo significant updates: starting from mid to late March, validators will need to hold at least 10,000 DOT in a slashing-capable self-stake and set a minimum commission rate of 10%; from April, nominators will become non-slashable, and the unbonding period will be significantly shortened from 28 days to 24 to 48 hours.

The Web3 Foundation announced that it will gradually end its official support services for Polkadot. Existing support contact methods will be closed one week after the announcement, and the AI chatbot will also be disabled at that time, with the support page content no longer being maintained in the future.The Web3 Foundation stated that this is part of a strategic adjustment. End-user support has not disappeared but is evolving, and in the future, it will rely more on ecosystem community channels (Discord, Reddit, Telegram) to provide assistance to users.

Web3 Foundation announced that it will gradually end the official customer support operations for Polkadot. The official statement indicates that as the Polkadot ecosystem continues to mature, its strategic focus will shift from expanding centralized support functions to prioritizing the development of more intuitive and autonomous products and user interfaces, thereby reducing users' reliance on customer support from a system design perspective.According to the subsequent arrangements, the official support contact form will remain open for one week after this announcement is made, and will then officially close, but any remaining submitted tickets will still be processed; the AI chatbot will also be taken offline. Additionally, the existing support page knowledge base will be temporarily retained, but no further content updates or maintenance will be conducted. In the future, user help and support will be fully transitioned to a decentralized community, and the official recommends that users seek assistance through Polkadot community channels such as Discord, Reddit, and Telegram.

According to tracking data from the Web3 asset data platform RootData X, in the past 7 days, the Polkadot liquidity protocol Hydration has been the project with the most unfollows by top figures on X (Twitter). The new influential figures who unfollowed this project include cryptocurrency trader Loomdart (@loomdart), DeFi analyst Ignas (@DefiIgnas), and angel investor naniXBT (@naniXBT).In addition, the project with the most unfollows by top figures on X also includes Saymore.

Polkadot data shows that robots have generated 51% of the total network traffic, officially surpassing the proportion of human activity for the first time.

According to financefeeds, global cybersecurity company Kaspersky has issued an urgent alert regarding a new sophisticated information-stealing tool named "Stealka," which has begun launching large-scale attacks against Windows users.This malware was discovered at the end of 2025 and is specifically designed to collect sensitive financial data, browser credentials, and cryptocurrency wallet information. Stealka is primarily distributed through deceptive platforms like GitHub and SourceForge, disguised as "cracks" for pirated software or high-demand applications.The malware is particularly dangerous because it employs advanced obfuscation techniques to bypass traditional signature-based security solutions, often remaining undetected during comprehensive scans of the victim's device. This threat emerges at a time when password theft detection has surged nearly 60% throughout the year, marking a more aggressive phase in the evolution of digital financial crime.

According to Coinbase Markets, Coinbase has restored the sending, receiving, and staking functions for Polkadot (DOT), and all related services have been restarted.Previously, the official announcement stated that to complete the network migration, the transfer in, transfer out, and staking of DOT were suspended, and users were advised not to deposit during the upgrade window. The functions have now been restored, and users can use them normally.

ChainCatcher news, the Hong Kong Office for Key Enterprises has announced that 18 companies, including the Polkadot Community Foundation, have settled in Hong Kong, bringing the total number of key enterprises to 102. Polkadot co-founder Vincent stated that he started educational work in Hong Kong three years ago. With low tax rates and a rich talent pool, along with the Hong Kong government's recent regulations on stablecoin licensing, he is optimistic about Hong Kong's prospects in promoting Web3.

ChainCatcher news, the Polkadot ETF (TDOT) issued by 21Shares and the Sui ETF (TSUI) have been listed on the DTCC website. The listing on the DTCC website is part of the "standard process" in preparation for the launch of new ETFs, and this move does not indicate that the relevant ETFs have received any regulatory approval or completed other approval processes.