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According to Businesswire, the cryptocurrency asset investment fund C1 Fund announced its performance for the second quarter of 2026, revealing that as of the second quarter of this year, its portfolio has expanded to 11 cryptocurrency companies, covering areas such as cryptocurrency payments, custody, compliance, staking, exchanges, infrastructure development, and prediction markets. Its two major investment exposures are Ripple (accounting for 17.5% of net assets) and Kraken's parent company Payward (16.9%), and it has also made a new investment in the prediction market platform Polymarket, although the specific investment amount has not been disclosed.C1 Fund also stated that as of July 31, it has repurchased and canceled 249,300 shares of the company's stock, with a total cost of approximately $824,000, and it is currently authorized to repurchase up to $3 million in stock.

According to a Reuters report, Polymarket's new Global Head of Research and Intelligence, Shana Bautista (former analyst at Coinbase, former investigator at the FBI), stated that as the U.S. midterm elections approach, Polymarket has established a system to identify unusual trading activities and will continue to prevent U.S. users from using its international platform to comply with the settlement agreement reached with U.S. regulators in 2022.In addition, Polymarket plans to launch a new webpage to publicly disclose the operational details of market integrity review mechanisms such as machine learning, blockchain analysis, and trading monitoring, and revealed that it has referred over 100 cases to law enforcement agencies.

According to official news, the Polymarket website is down, and users are unable to place orders. Polymarket has stated that they are working to fix this issue. Trading is expected to resume by 18:00 today (Beijing time) at the latest.

Polygon Labs disclosed that it has fixed a batch of security vulnerabilities in its proof-of-stake network through two hard forks, with the related fixes privately deployed before public disclosure. According to a forum post released on Wednesday, the team packaged the fixes into the Austin hard fork of the Bor client and the Kyoto hard fork of the Heimdall client, both of which followed the standard process for fixing issues that affect consensus: first validated on the Amoy testnet, and then publicly disclosed once the mainnet was activated and the network was secure.The Austin fork fixed two denial-of-service paths in block processing, including a vulnerability where malicious block producers could crash peer nodes by filling them with oversized field data. The Kyoto fork addressed a broader range of consensus hardening issues, with the most severe vulnerability allowing an attacker to force the entire validator set to perform costly and coordinated work with just one crafted transaction—the cost of constructing the transaction is low, but the network processing cost is high. Polygon emphasized that none of the vulnerabilities were observed to be exploited on the mainnet and have been proactively addressed. The two upgrades are now mandatory for node operators and have taken effect without the need for state migration or resynchronization.This disclosure comes at a critical transformation period for Polygon, which has completed the migration of the traditional MATIC token to POL as part of a comprehensive overhaul of its network architecture. The news did not boost the price of POL; according to CoinGecko data, POL traded at approximately $0.09983 on Sunday, down 2.3% in 24 hours, down about 6.8% over the past week, and down about 60.8% over the past year, with a market capitalization of approximately $1.07 billion.

Polygon disclosed multiple previously undisclosed security vulnerabilities recently fixed through two hard forks, Austin and Kyoto, which could affect its proof-of-stake network. The vulnerabilities involve Polygon's Bor and Heimdall clients, including denial-of-service risks, validator resource exhaustion, and defects affecting checkpoint and milestone processing.Polygon stated that the fixes were privately tested before being deployed to the mainnet and publicly disclosed. The most severe issue involved Heimdall, where carefully crafted transactions could force validators to perform excessive processing work, disrupting the network. The Austin hard fork also fixed two denial-of-service risks in Bor that could slow down block processing or cause node crashes. Polygon indicated that these vulnerabilities were not exploited on the mainnet, and the fixes were proactively completed before the details of the vulnerabilities were made public.

According to data from DefiLlama, Pons' revenue in the past 24 hours reached $693,125, surpassing Polymarket ($635,221) and fomo ($646,539), ranking eighth in protocol revenue, just behind Hyperliquid ($758,325).

PPP prediction market tool monitoring shows that the probability of Polymarket "ETH dropping to $2400 in the remaining period of August" has decreased to 30%, a 31% drop in 24 hours; the probability of dropping to $2300 has decreased to 4%, a 4% drop in 24 hours. This market is based on the Binance ETH/USDT trading pair.During the specified month in the title (from 00:00 on the 1st of the month Eastern Time to 23:59 on the last day), if the highest price of any 1-minute candlestick equals or exceeds the specified price in the title, it will be settled as Yes immediately; otherwise, it will be No. Only the 1-minute candlestick High price of Binance ETH/USDT is considered, and prices from other exchanges or trading pairs are not included.

Polygon disclosed multiple previously undisclosed security vulnerabilities that were recently fixed through two hard forks, which could affect its proof-of-stake network. The vulnerabilities involve Polygon's Bor and Heimdall clients, including denial of service risks, validator resource exhaustion, and defects affecting checkpoint and milestone processing.Polygon stated that these vulnerabilities were fixed through the Austin and Kyoto hard forks, and the fixes were privately tested before being deployed to the mainnet and publicly disclosed. The most serious issue involved Heimdall, where a carefully crafted transaction could force validators to perform excessive processing work, thereby disrupting the network. The Austin hard fork also fixed two denial of service risks in Bor that could slow down block processing or cause node crashes.Polygon indicated that these vulnerabilities were not exploited on the mainnet, and the fixes were proactively deployed before the details were made public. Nodes running outdated client versions have fallen out of consensus after the hard fork activation height and must upgrade to rejoin the standard network. All Polygon PoS nodes are required to upgrade to Bor v2.1.0, and validators and full nodes must upgrade to Heimdall v0.11.0, both upgrades are now effective on the mainnet.

According to CryptoSlate, Polygon Labs issued an urgent notice that Polygon PoS nodes remaining on the old versions of Bor or Heimdall have lost consensus after the activation of the Austin and Kyoto hard forks and need to upgrade to catch up with the network progress. Austin was activated at mainnet block 91,949,700, requiring Bor v2.1.0 or above; Kyoto was activated at height 51,533,000, requiring Heimdall v0.11.0 or above.Austin fixed two types of Bor resource exhaustion risks: L1 to L2 bridging state synchronization events not counted towards the gas limit could slow down block processing; the TxDependency field having no size limit could lead to peer node crashes. Kyoto addressed vulnerabilities such as deep nested message attacks, fee coin scanning, and checkpoint signature recovery. Both hard forks are pure binary upgrades, requiring no state migration, and non-forked nodes do not need to resynchronize. Operators of old clients should upgrade and restore synchronization under Polygon's guidance if necessary.

According to IT Home, the International Criminal Police Organization (INTERPOL) has announced the results of the new anti-fraud operation "Jackal IV." This operation will last from November 2025 to June 2026 and involves 22 countries and regions worldwide, focusing on combating online financial crimes such as romance scams, cryptocurrency and investment fraud, email scams, and money laundering. A total of 58 people were arrested in this round of operations, and the identities of 263 individuals involved have been confirmed.Among them, the Argentine police seized a "Crime-as-a-Service" (CaaS) network that provided website domain and money laundering services, arresting 17 people and confirming the identities of 196 individuals involved. The South African police raided 7 locations in Johannesburg, arresting 39 suspects accused of romance scams and investment fraud targeting retirees from English-speaking countries, while seizing $2.67 million and freezing 257 bank accounts.In addition, the Italian police confirmed one suspect involved in a cross-European money laundering network, discovering that a single bank account was linked to money laundering transactions amounting to €845,000; the Romanian police dismantled an investment fraud gang, arresting 11 people and seizing illegal assets such as cash, cryptocurrency, and real estate.

According to Decrypt, the British police confiscated 20.21 bitcoins along with other cryptocurrencies and bank funds, totaling a value of 1.4 million dollars. The individuals involved had previous convictions for money laundering and are now deceased.Investigators traced these assets back to dark web markets that operated from 2016 to 2019 and were later shut down by law enforcement. The police stated that these now-closed websites had facilitated various criminal activities ranging from drug supply to human trafficking, but did not disclose the specific names of the websites.

According to Bloomberg, European Central Bank Executive Board Member Isabel Schnabel stated that central banks should introduce central bank money into blockchain to innovate the execution of monetary policy.Implementing "on-chain" not only maintains the status of money as the "settlement cornerstone," but also allows central banks to utilize the programmable features of distributed ledgers to modernize the execution of monetary policy, collateral management, and liquidity provision, thereby promoting financial stability.

Federal Reserve Chairman Waller stated on Friday that if policymakers cannot be confident that inflation is "declining at a clear and sufficiently rapid pace" back to 2%, the Fed "has work to do." This suggests that if price pressures do not improve, the Fed may raise interest rates next.Waller made it clear that he still adheres to the Fed's long-standing policy path of managing inflation through interest rate adjustments. This significantly increases the likelihood of the Fed's next step being a rate hike, which could create a divergence between him and President Trump, who has long sought rate cuts. This statement essentially eliminated the ambiguity that had been left previously. At the press conference at the end of July, Waller declined to respond extensively to whether a rate hike was needed to address the inflation issue, which has significantly risen this year and has been above the Fed's target for more than five consecutive years.

The Irish National Police (An Garda Síochána) reported that during a special operation against organized crime in the Galway area, police searched two properties and froze two cryptocurrency accounts worth approximately $900,000 in total. In addition, the police also froze a bank account containing €25,000 (approximately $29,100), and seized €9,300 in cash and drugs valued at approximately €18,300 (including amphetamines and cannabis).A man in his 40s involved in the case has been arrested and charged, and the investigation is ongoing.

According to Decrypt, the financial investigation department of the police in Avon and Somerset, UK, has seized 20.21 bitcoins along with other crypto assets and bank account funds, totaling approximately $1.4 million (£1.03 million). Investigators traced the assets to dark web markets that operated between 2016 and 2019, all of which have now been shut down by law enforcement and were involved in criminal activities such as drug supply and human trafficking.This is the largest cryptocurrency seizure operation by the police since the introduction of the cryptocurrency wallet freezing order in the UK in April 2024. This power allows the police to freeze and seize cryptocurrencies without prior arrests, transferring them to wallets controlled by law enforcement, and seizing written passwords or storage devices. The individuals involved had previous money laundering convictions and are now deceased.The police pointed out that every transaction processed by these markets is permanently recorded on the blockchain, serving as a valuable source of evidence. The assets were seized earlier this year under the Proceeds of Crime Act, with the court determining that they represented proceeds from illegal activities, and the recovered funds will be used for community and policing projects.

The Public Security Bureau of Hongkou District, Shanghai, China, recently solved a case involving cross-border illegal settlement and illegal foreign exchange trading using virtual currency, arresting 9 criminal suspects and involving an amount of over 200 million yuan. The suspects, including a person named Li, established a technology company at the beginning of 2024 to seek illegal profits, building two platforms online: "Cross-Border Fund Exchange" and "Virtual Credit Card Issuance and Settlement." They solicited customers both online and offline, illegally conducting exchange and settlement services for virtual currency and cross-border funds, profiting through transaction fees, service fees, card issuance fees, withdrawal fees, and other means.Investigators stated, "The uniqueness of this case lies in the fact that the criminals developed two apps and publicly solicited customers on such a large scale, which has never been seen before. The platforms built in this case are themselves a closed-loop illegal financial service system, with all transactions settled internally on the platform. This mode of crime has a higher degree of scale, a longer chain, and is more deceptive." Reports indicate that on the "Cross-Border Fund Exchange" platform, the criminal gang collected customers' virtual currency overseas and exchanged it for foreign currency, forming a "fund pool," and then realized cross-border settlement through fabricated contracts, achieving the exchange and transfer of virtual currency to RMB. On the "Virtual Credit Card Issuance and Settlement" platform, the criminal gang "cooperated" with several overseas private banks to issue virtual credit cards to customers, who could use the card for consumption, but the repayment process had to be settled in virtual currency; the gang exchanged virtual currency for foreign currency overseas, relying on false cross-border settlements to complete clearing with overseas card merchants.

According to Crypto Briefing, the U.S. Depository Trust & Clearing Corporation (DTCC) has added 21Shares' Polkadot Staking ETF to its listing, with the code TDOT, marking the official entry of this product into the U.S. ETF ecosystem. Meanwhile, 21Shares has renamed the fund from its original name "21Shares Polkadot ETF" to "21Shares Polkadot Staking ETF," with this change taking effect on August 27, 2026.This name change is not just a superficial adjustment; the term "Staking" clearly communicates the product mechanism to institutional investors: the fund holds DOT tokens, stakes 40% to 95% of its holdings through network validators, and distributes earnings to shareholders on a quarterly basis. The current staking yield is 2.04%, with a management fee of 0.3%, and custody is jointly handled by Anchorage Digital, BitGo, and Coinbase. The ETF was listed on Nasdaq on March 6, 2026, with initial seed funding of approximately $11 million, and as of the end of August, the assets under management are approximately $7.5 to $7.9 million.

Polymarket US has withdrawn two NFL player participation contract documents from the prediction market platform. The platform has completed certification with the Commodity Futures Trading Commission (CFTC) and plans to launch related products no earlier than August 27. Polymarket US certifies Bitcoin, Ethereum, and Solana price contracts, all three types of contracts are submitted in pairs and classified as swap contracts under the binary options subcategory.Both the NFL contracts and cryptocurrency contracts involve the relevant classifications. The NFL compliance analysis document has been submitted separately for confidentiality, with Polymarket US requesting permanent non-disclosure on the grounds that public disclosure would leak trade secrets and give competitors an unfair advantage. As of the record, another NFL American football eligibility contract remains in certified status.

Polish Olympic Committee President Radosław Piszczek was arrested on Thursday, suspected of receiving kickbacks from the cryptocurrency platform Zondacrypto during the signing of a sponsorship agreement. Polish Sports Minister Jakub Rudnicki confirmed the arrest on the X platform, stating, "Such a person should not hold the position of President of the Polish Olympic Committee; Piszczek has brought shame to Polish sports." Interior Minister Marcin Kwiatkowski referred to him as "a symbol of extreme corruption plaguing the Olympic movement."According to the investigation, Piszczek facilitated the sponsorship agreement between the Polish Olympic Committee and Zondacrypto in October 2025, which promised cryptocurrency rewards to medalists of the 2026 Milan-Cortina Winter Olympics. The Polish government accused Zondacrypto of having ties to nationalist opposition groups, organized crime, and Russian intelligence agencies, estimating that the platform's collapse caused losses of about 350 million zlotys (approximately 80 million euros), affecting around 30,000 people. The Interior Minister described Zondacrypto as "essentially a Ponzi scheme."Media investigations also revealed that Piszczek received a Patek Philippe watch worth approximately 40,000 euros from Zondacrypto CEO Przemysław Kral, who claimed the watch was purchased out of his own pocket. Kral is currently cooperating with prosecutors in hopes of a reduced sentence. Zondacrypto was founded by Sylwester Sucheck in 2014, who went missing in 2022, with Kral taking over his position. The Polish prosecutors launched an investigation in April of this year, and most Polish sports federations subsequently called for Piszczek's resignation.