Payy Network's Ethereum L1 rollup bridge (RollupV1) was exploited and drained of approximately $1.83 million in USDC through a forged withdrawal hidden in a valid batch. The attack exploited the absence of deposit accounting, withdrawal caps, or pause mechanisms in the contract, with the attacker depositing only $10 while withdrawing $1.83 million using a compromised prover or validator key.
AI-assisted coding has reduced the estimated computing cost of preparing a quantum-resistant Bitcoin transaction from $320 to $66 in one week, making the process nearly 6× faster while working within Bitcoin's existing rules. The breakthrough demonstrates Bitcoin's capacity to adapt to future threats and strengthen its technology without requiring network upgrades.
Bitcoin discussions on X trending on September 23, 2026, featuring advocacy for the $DOG memecoin as authentic Bitcoin culture, Coinbase's post-quantum cryptography preparations for $250 billion in institutional assets, billionaire Grant Cardone's $69 million Bitcoin purchase, and technical analysis advice on weekly Bitcoin charts.
Bitcoin discussions trending on X cover quantum-resistant Lightning Network protections developed by East Texas A&M students, Satoshi Nakamoto entering the top 22 wealthiest people, Moscow Exchange launching perpetual futures for major cryptocurrencies, Bitcoin's 13% weekly jump with 42% odds of reaching $100,000 by year-end, and Mark Cuban's criticism that Bitcoin has lost direction.
Social media discussions about cryptocurrency highlight XRP Ledger's claimed quantum resistance through DNA Protocol's hash-based anchoring, while Ethereum shows strength against traditional markets with predictions of crypto adoption growth over the next 2-3 years.
Rita Crypto Tips discusses distributed key generation (DKG) as a security approach that eliminates single points of failure in cryptocurrency systems. DKG allows multiple participants to collectively control a private key without any one party holding the full secret, reducing risks from compromised devices, insider threats, and key leaks. The post highlights Rialo's implementation combining DKG with threshold cryptography for applications like multisig wallets, institutional custody, validators, and bridges.
Two technical discussions on Ethereum-related privacy and spatial data verification projects. BeldexCoin is developing privacy tokens on UTXO architecture before expanding to EVM compatibility, while VanGrid is building cryptographic verification for physical space captures using content hashing and on-chain anchoring via Ethereum Attestation Service.
Zcash reached a $26.27B market cap in 2026 following Grayscale's conversion of its Zcash Trust into a spot ETF (ZCSH) on NYSE Arca in August, attracting $233M in net inflows within weeks. The network completed its transition to the Halo 2 proving system, eliminating trusted setup requirements, while derivatives markets showed significant leverage with futures volume nearly nine times spot turnover and forced liquidations totaling $157.91M.
Two X posts discuss wallet security and a cryptocurrency theft. The first explains hardware-based wallet security using isolated cryptographic signing to prevent unauthorized transactions from phishing and malicious apps. The second reports a 26,414 USDT loss from WealthManagementV2 contract due to suspected leaked private key compromising owner privileges, allowing the attacker to manipulate contract parameters and mint inflated interest.
Revolut confirmed a data breach involving stolen customer information after attackers exploited fraudulent requests from a spoofed government email account. Threat actors demanding $3 million in XMR have publicly announced the extortion, though Revolut denies receiving direct contact; the post discusses how Internet Computer's threshold cryptography and canister-based authorization could prevent similar attacks through distributed key management and policy-enforced workflows.