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Project Overview
Cardano is an open-source, decentralized, and public blockchain platform. Consensus is achieved using proof of stake. Development of the platform began in 2015, and it was launched in 2017 by Charles Hoskinson, a co-founder of Ethereum.
Cardano wallet SecondFi announces shutdown after hack attack
According to CoinDesk, the Cardano wallet SecondFi was attacked due to a vulnerability in its transaction signing software. A total of 16.1 million ADA (approximately $2.4 million) across 374 wallets was stolen, and the platform has announced permanent closure. The vulnerability allowed attackers to derive private keys from transaction data visible on-chain. The Cardano network itself was not affected, nor were hardware wallet users. An investigation by Groom Lake, a blockchain intelligence company hired by EMURGO, revealed that the primary attackers were sophisticated and well-funded. Some indications point to North Korea's Lazarus Group, but this has not yet been officially confirmed. SecondFi plans to release a wallet export tool in early August and launch a zero-knowledge recovery portal later in the month. EMURGO has established an asset recovery wallet, with the specific distribution time to be determined.
SecondFi to Gradually Shut Down Wallet Services After $2.6 Million ADA Theft
Cardano ecosystem wallet SecondFi announced that due to a cryptographic defect in its wallet software, approximately 16.1 million ADA (worth around $2.6 million) were stolen. The platform will gradually shut down the SecondFi and Yoroi wallet services. This incident has affected 374 wallets. SecondFi stated that an independent investigation by blockchain intelligence agency Groom Lake identified the attackers as a sophisticated external actor and found indicators potentially linked to North Korea's Lazarus Group, though attribution has not yet been confirmed. SecondFi is developing a recovery tool based on zero-knowledge proofs to help affected users recover assets while limiting the information that needs to be shared. The tool is still being tested and will undergo third-party audits before its planned release in August. SecondFi is also preparing a wallet export feature to allow users to migrate their assets to other services. The platform has not announced a direct compensation plan, nor has it indicated whether it will use its own funds to compensate users.
Midnight：Multiple Exchanges Including Binance Freeze Funds Involved in Cross-Chain Bridge Attack
the Midnight Foundation has provided an update on the handling of the cross-chain bridge attack event involving Wanchain Cardano and BNB. Multiple exchanges including KuCoin, Kraken, Binance, Bybit, OKX, Gate, and MEXC have coordinated risk control actions, temporarily freezing the involved accounts and associated addresses, adding the hacker wallet to a blacklist, and pausing NIGHT token deposits and withdrawals as needed to curb the transfer and cashing out of stolen assets.The Foundation specifically noted that this security incident is an isolated incident related to a third-party cross-chain bridge, and the Midnight mainnet and native NIGHT assets have not been affected. The project team continues to collaborate with major exchanges and ecosystem partners to advance traceability investigations, reminding the community to rely on official disclosures for information and to be cautious of misinformation.
Cardano Foundation: Volvo Group Once Created a Proprietary Cryptocurrency for Testing Supplier Payment Processes
the Cardano Foundation stated it has exchanged insights with the Volvo Group on the application of blockchain technology in the manufacturing industry. Ivan Branco, responsible for information management, artificial intelligence, and data analytics for Volvo Group’s Belgian truck operations, stated that Volvo once created a proprietary cryptocurrency to internally test the supplier payment process.Ivan Branco believes that while the relevant technology is already usable, organizational culture has yet to catch up, which is more challenging to address than the technical issues. He also noted that supply chain compliance is a significant application scenario for blockchain. Shared ledgers among suppliers can enhance the transparency of component origins and reduce compliance risks associated with using parts from sanctioned countries.
SecondFi Launches Asset Recovery Wallet Check Tool; Users Can Preliminary Check if Wallets Are Affected
Odaily, Cardano wallet service provider SecondFi has launched an asset recovery wallet check tool, allowing users to preliminarily check whether their relevant wallets have been affected by the previous security incident.SecondFi stated that the addresses currently displayed in the tool are based on the team's preliminary review data of the security incident and are not final. The list may not be complete and does not represent the final scope of recovery.
SecondFi: User Asset Repayment Expected to Begin in Approximately Two Weeks
Odaily, Cardano wallet service provider SecondFi has released an update on the security incident, stating that the team has completed the final balance snapshot of affected user assets. Several rounds of snapshots were continuously recorded during the incident response period to serve as the basis for subsequent asset recovery and reconciliation. SecondFi stated that the engineering and security teams are advancing the asset recovery plan. It is estimated that asset repayment can begin in approximately two weeks — one week allocated for finalizing a viable technical solution and another week for testing and review. The specific timeline may be subject to minor adjustments as progress unfolds. The platform will resume operations only after passing a comprehensive security review. Currently, users only need to submit a support request via the official website's ticketing system, with no additional action required.
SlowMist Yu Xian: Stolen funds from SecondFi may exceed $20 million
SecondFi, a Cardano ecosystem project, stated that the root cause of the recent security incident has been identified as an issue with its in-house Cardano wallet generation software. The team said it has completed on-chain analysis to assess the scope of impact and is currently collaborating with a blockchain security firm for an independent technical assessment. A preliminary estimate of the total impact is approximately 16 million ADA.
ADA Whales’ Holdings Share Rises to Nearly 67%, Highest Since 2020
Cardano whales currently hold nearly 67% of ADA's total supply, the highest level of concentration since 2020. (Cointelegraph)
Grayscale Files for First Zcash Spot ETF
Grayscale submitted the first application for a Zcash spot ETF on May 8.ZEC’s price once touched $600, pushing its market cap into the top 15 and surpassing Cardano. Multicoin Capital co-founder Tushar Jain noted that this move is driven by growing demand for privacy assets amid U.S. wealth tax legislative proposals. The SEC concluded its review of Zcash in January 2026 without taking enforcement action. Data shows that approximately 30% of ZEC’s supply is held in shielded addresses. Last week, U.S. Bitcoin spot ETFs saw $268 million in outflows, with some capital rotating into privacy and AI infrastructure tokens.
Operations Ceased, SecondFi Wallet Migration Tool Launches August 13, Affected Asset Recovery Portal Expected by September 10
: Cardano ecosystem wallet project SecondFi has announced the launch of a wallet migration tool and revealed a recovery plan for assets affected by the June 2026 security incident. As the project will cease operations, users are required to migrate remaining assets still held in SecondFi wallets. The migration tool is expected to go live on August 13, supporting the transfer of eligible ADA, Cardano native tokens, and NFTs to new Cardano wallets created with service providers of the users' choosing. Currently, the tool only supports Cardano network assets; non-Cardano assets must be transferred separately through corresponding network and wallet processes. SecondFi stated that the migration tool has passed an independent security assessment by security firm Bitdefender. For affected assets, SecondFi plans to launch a recovery portal before September 10, where users can verify wallet ownership via zero-knowledge proofs (ZK Proof) and submit asset claims. SecondFi reminds users to only rely on information published through official channels, including @secondfiapp, @secondfi_jp, and the official support website, to guard against phishing sites and impersonating accounts.
July crypto asset thefts reached $247 million, marking the second-highest month of 2026
Odaily News: DefiLlama data shows that hackers stole $247 million in crypto assets in July, making it the second-highest month since 2026, trailing only April's $644 million; this figure represents a significant increase from June's $75 million and May's $60 million. Galaxy Digital stated that the Coldcard vulnerability was the largest attack event of the month, confirming three rounds of attacks involving 7,300 wallets, with at least $100 million in Bitcoin stolen; the firm also identified a suspected fourth round of attacks, which could bring total losses to approximately $130 million. DefiLlama's hack tracker estimates losses related to this vulnerability at $115 million. Other attacks in July include a $9 million exploit on decentralized finance protocol Bonzo Lend, a $2.6 million theft from Cardano-based wallet SecondFi, a $24 million theft from Arbitrum-based perpetual trading platform AFX, and a $7.5 million theft from the Verus Ethereum Bridge.
Wanchain Proposes White Hat Settlement to Attacker, Allowing Them to Keep 10% as Bounty
Odaily News: Cross-chain infrastructure provider Wanchain has announced that it is proposing a white hat settlement to the attacker responsible for the July 20 exploit of the Wanchain Cardano cross-chain bridge, during which NIGHT tokens were stolen. The proposal requires the attacker to return 90% of the stolen NIGHT tokens before 20:00 Beijing time on August 6, and allows them to keep 10% as a white hat bounty. If the tokens are returned on time, Wanchain will regard the action as white hat behavior and will not pursue civil litigation.
Wanchain 遭黑客攻击 NIGHT 代币被盗，要求归还 90% 并承诺白帽豁免
据 Wanchain 官方 X 账号发文，2026 年 7 月 20 日，Wanchain Bridge Cardano 跨链桥遭到攻击，黑客盗取 NIGHT 代币。Wanchain 随即向攻击者发出公告，要求其在 8 月 6 日 UTC 12:00 前归还 90% 被盗 NIGHT 代币，可保留 10% 作为白帽赏金，并承诺不追究民事责任。 目前，有社区用户指出黑客已将 NIGHT 代币在 DEX 上完成兑换，NIGHT 代币价格下跌逾 30%，现报 0.0188 美元。
Cardano wallet SecondFi announces shutdown after hack attack
According to CoinDesk, the Cardano wallet SecondFi was attacked due to a vulnerability in its transaction signing software. A total of 16.1 million ADA (approximately $2.4 million) across 374 wallets was stolen, and the platform has announced permanent closure. The vulnerability allowed attackers to derive private keys from transaction data visible on-chain. The Cardano network itself was not affected, nor were hardware wallet users. An investigation by Groom Lake, a blockchain intelligence company hired by EMURGO, revealed that the primary attackers were sophisticated and well-funded. Some indications point to North Korea's Lazarus Group, but this has not yet been officially confirmed. SecondFi plans to release a wallet export tool in early August and launch a zero-knowledge recovery portal later in the month. EMURGO has established an asset recovery wallet, with the specific distribution time to be determined.
SecondFi to Gradually Shut Down Wallet Services After $2.6 Million ADA Theft
Cardano ecosystem wallet SecondFi announced that due to a cryptographic defect in its wallet software, approximately 16.1 million ADA (worth around $2.6 million) were stolen. The platform will gradually shut down the SecondFi and Yoroi wallet services. This incident has affected 374 wallets. SecondFi stated that an independent investigation by blockchain intelligence agency Groom Lake identified the attackers as a sophisticated external actor and found indicators potentially linked to North Korea's Lazarus Group, though attribution has not yet been confirmed. SecondFi is developing a recovery tool based on zero-knowledge proofs to help affected users recover assets while limiting the information that needs to be shared. The tool is still being tested and will undergo third-party audits before its planned release in August. SecondFi is also preparing a wallet export feature to allow users to migrate their assets to other services. The platform has not announced a direct compensation plan, nor has it indicated whether it will use its own funds to compensate users.
Nasdaq-listed company AIxCrypto reports 50% unrealized loss on crypto holdings, announces orderly exit and transition to event robot rental
According to CryptoSlate, Nasdaq-listed company AIxCrypto Holdings announced plans to orderly sell all its crypto assets. As of June 30, the company held 46 BTC, 616 ETH, 6,659 SOL, 1,308 BNB, and small amounts of ADA, LINK, TRX, USDT, and XRP, with a total cost basis of $10.43 million, fair value of only $5.21 million, an unrealized loss of approximately $5.22 million, representing a drop of about 50% from cost. Meanwhile, the company's operating cash consumption in the first half of the year reached $7.94 million, with accumulated losses as high as $150.3 million, raising doubts about its ability to continue as a going concern. The company is shifting its business focus to its RoboShare robot rental platform and completed its first commercial order on August 15, deploying 6 robots at a Malibu event, but specific revenue and subsequent demand have not yet been disclosed.
Cardano founder Charles Hoskinson launches open-source project "anthropies"
Odaily News: Cardano founder Charles Hoskinson announced on the X platform the launch of an open-source project called "anthropies," stating that he has developed a set of tools compatible with most LLMs to handle watermarks and related markers in Anthropic/Claude outputs. According to the project's README, the tools distinguish among three types of information: statistical watermarks in text, C2PA content credentials in images, and Co-Authored-By: Claude attributions in Git commits. However, the project also notes that it cannot guarantee complete circumvention of Anthropic's undisclosed detection mechanisms.
Operations Ceased, SecondFi Wallet Migration Tool Launches August 13, Affected Asset Recovery Portal Expected by September 10
: Cardano ecosystem wallet project SecondFi has announced the launch of a wallet migration tool and revealed a recovery plan for assets affected by the June 2026 security incident. As the project will cease operations, users are required to migrate remaining assets still held in SecondFi wallets. The migration tool is expected to go live on August 13, supporting the transfer of eligible ADA, Cardano native tokens, and NFTs to new Cardano wallets created with service providers of the users' choosing. Currently, the tool only supports Cardano network assets; non-Cardano assets must be transferred separately through corresponding network and wallet processes. SecondFi stated that the migration tool has passed an independent security assessment by security firm Bitdefender. For affected assets, SecondFi plans to launch a recovery portal before September 10, where users can verify wallet ownership via zero-knowledge proofs (ZK Proof) and submit asset claims. SecondFi reminds users to only rely on information published through official channels, including @secondfiapp, @secondfi_jp, and the official support website, to guard against phishing sites and impersonating accounts.
Cardano Foundation CTO will step down on August 31
According to an official announcement, Cardano Foundation Chief Technology Officer Giorgio Zinetti will depart from the foundation on August 31. The foundation expressed its gratitude for his support and significant contributions to the development of the foundation and Cardano since he assumed the role of Chief Technology Officer in 2024.
Grayscale withdraws three ETF registration applications for ADA, HBAR, and DOT in succession, without disclosing specific reasons
Odaily News – Grayscale withdrew three ETF registration applications for Cardano (ADA), Hedera (HBAR), and Polkadot (DOT) in succession on August 7, with the three withdrawal filings submitted approximately 190 seconds apart.All three withdrawal filings indicate that Grayscale no longer plans to proceed with the issuance of shares for the related ETFs. The filings also note that the registration statements had not yet taken effect, no securities were issued or sold, and no preliminary prospectus was published. These withdrawals do not represent rejections by the SEC of the related ETF applications, and the filings do not disclose the reasons behind them.As of August 8, Grayscale's altcoin ETF applications for Bittensor, Aave, BNB, NEAR, and Zcash remain in the preliminary stage. Previously, Grayscale's Avalanche Staking ETF and Hyperliquid Staking ETF registration statements took effect in March and June of this year, respectively. However, the effectiveness of a registration statement does not mean the product has begun trading. (cryptoslate)
Cardano wallet SecondFi announces shutdown after hack attack
According to CoinDesk, the Cardano wallet SecondFi was attacked due to a vulnerability in its transaction signing software. A total of 16.1 million ADA (approximately $2.4 million) across 374 wallets was stolen, and the platform has announced permanent closure. The vulnerability allowed attackers to derive private keys from transaction data visible on-chain. The Cardano network itself was not affected, nor were hardware wallet users. An investigation by Groom Lake, a blockchain intelligence company hired by EMURGO, revealed that the primary attackers were sophisticated and well-funded. Some indications point to North Korea's Lazarus Group, but this has not yet been officially confirmed. SecondFi plans to release a wallet export tool in early August and launch a zero-knowledge recovery portal later in the month. EMURGO has established an asset recovery wallet, with the specific distribution time to be determined.
Related news
Nasdaq-listed company AIxCrypto reports 50% unrealized loss on crypto holdings, announces orderly exit and transition to event robot rental
According to CryptoSlate, Nasdaq-listed company AIxCrypto Holdings announced plans to orderly sell all its crypto assets. As of June 30, the company held 46 BTC, 616 ETH, 6,659 SOL, 1,308 BNB, and small amounts of ADA, LINK, TRX, USDT, and XRP, with a total cost basis of $10.43 million, fair value of only $5.21 million, an unrealized loss of approximately $5.22 million, representing a drop of about 50% from cost. Meanwhile, the company's operating cash consumption in the first half of the year reached $7.94 million, with accumulated losses as high as $150.3 million, raising doubts about its ability to continue as a going concern. The company is shifting its business focus to its RoboShare robot rental platform and completed its first commercial order on August 15, deploying 6 robots at a Malibu event, but specific revenue and subsequent demand have not yet been disclosed.
Cardano founder Charles Hoskinson launches open-source project "anthropies"
Odaily News: Cardano founder Charles Hoskinson announced on the X platform the launch of an open-source project called "anthropies," stating that he has developed a set of tools compatible with most LLMs to handle watermarks and related markers in Anthropic/Claude outputs. According to the project's README, the tools distinguish among three types of information: statistical watermarks in text, C2PA content credentials in images, and Co-Authored-By: Claude attributions in Git commits. However, the project also notes that it cannot guarantee complete circumvention of Anthropic's undisclosed detection mechanisms.
Operations Ceased, SecondFi Wallet Migration Tool Launches August 13, Affected Asset Recovery Portal Expected by September 10
: Cardano ecosystem wallet project SecondFi has announced the launch of a wallet migration tool and revealed a recovery plan for assets affected by the June 2026 security incident. As the project will cease operations, users are required to migrate remaining assets still held in SecondFi wallets. The migration tool is expected to go live on August 13, supporting the transfer of eligible ADA, Cardano native tokens, and NFTs to new Cardano wallets created with service providers of the users' choosing. Currently, the tool only supports Cardano network assets; non-Cardano assets must be transferred separately through corresponding network and wallet processes. SecondFi stated that the migration tool has passed an independent security assessment by security firm Bitdefender. For affected assets, SecondFi plans to launch a recovery portal before September 10, where users can verify wallet ownership via zero-knowledge proofs (ZK Proof) and submit asset claims. SecondFi reminds users to only rely on information published through official channels, including @secondfiapp, @secondfi_jp, and the official support website, to guard against phishing sites and impersonating accounts.
Cardano Foundation CTO will step down on August 31
According to an official announcement, Cardano Foundation Chief Technology Officer Giorgio Zinetti will depart from the foundation on August 31. The foundation expressed its gratitude for his support and significant contributions to the development of the foundation and Cardano since he assumed the role of Chief Technology Officer in 2024.
Grayscale Withdraws ADA, HBAR, and DOT ETF Registration Applications
According to the SEC page, Grayscale filed three Form RWs on August 7, withdrawing the S-1 registration statements for the Grayscale Cardano Trust ETF, Grayscale Hedera Trust ETF, and Grayscale Polkadot Trust ETF.
Grayscale withdraws three ETF registration applications for ADA, HBAR, and DOT in succession, without disclosing specific reasons
Odaily News – Grayscale withdrew three ETF registration applications for Cardano (ADA), Hedera (HBAR), and Polkadot (DOT) in succession on August 7, with the three withdrawal filings submitted approximately 190 seconds apart.All three withdrawal filings indicate that Grayscale no longer plans to proceed with the issuance of shares for the related ETFs. The filings also note that the registration statements had not yet taken effect, no securities were issued or sold, and no preliminary prospectus was published. These withdrawals do not represent rejections by the SEC of the related ETF applications, and the filings do not disclose the reasons behind them.As of August 8, Grayscale's altcoin ETF applications for Bittensor, Aave, BNB, NEAR, and Zcash remain in the preliminary stage. Previously, Grayscale's Avalanche Staking ETF and Hyperliquid Staking ETF registration statements took effect in March and June of this year, respectively. However, the effectiveness of a registration statement does not mean the product has begun trading. (cryptoslate)