TokenPost topic
Blockchain Security
79 TokenPost stories are tagged Blockchain Security. The newest appear first.
Latest Blockchain Security stories
- Ripple Fixes XRP Minting Bug and Batch-Processing Consensus Risk
The xrpld 3.4.1 release fixed an integer-overflow flaw and a batch-transaction validation issue affecting earlier versions.
· Technology
- Governments Set Quantum-Computing Deadlines as Algorand Plans Security Steps
Targets cited for the United States, EU and Australia extend to 2030, while the UK and Canada point to 2031. Algorand’s roadmap includes post-quantum milestones through 2027.
· Technology
- Avalanche Founder Warns AI Could Expose Hidden Blockchain Bugs
Emin Gün Sirer said AI may find software flaws before cryptographic breakthroughs undermine ECDSA. The XRP Ledger separately released a security update on Sept. 25, 2026.
· Technology
- Dragonfly Partner Proposes Recovery Plan for AI Cryptography Risk
Haseeb Qureshi said moving assets to fresh addresses would provide only temporary protection if cryptographic signatures were compromised.
· Technology
- Trump Administration’s $215M Quantum Push Highlights Crypto’s Q-Day Risk
The Energy Department competition targets fault-tolerant quantum systems for science, while federal policy calls for migration to post-quantum cryptography.
· Technology
- Singapore Crypto Event Highlights Quantum-Resistant Security Challenges
Quantum + Privacy Day brought crypto builders and industry stakeholders together to examine cryptographic migration, signature security and digital-asset privacy risks.
· Technology
- Crypto Lending Contracts as External Risks Reach Beyond Smart Contracts
Crypto-collateralized lending fell 16.78% in the second quarter to $56.16 billion, while the Kelp DAO bridge exploit exposed Aave markets to risks outside protocol code.
· Technology
- Solana Foundation Sets Quantum Migration Plan for Future Threats
The foundation says no cryptographic change is currently required, while Anza and Firedancer have begun initial Falcon implementation work for possible post-quantum use.
· Technology
- NEAR Protocol Launches Quantum-Safe Signing as Intents Expands Across More Than 30 Chains
The mainnet feature supports cross-chain applications, while NEAR Intents enables access to post-quantum assets across more than 30 chains.
· Technology
- Vitalik Buterin Says AI Could Become Ethereum’s New User Interface
The Ethereum co-founder outlined more private, programmable data and warned that AI-driven blockchain interactions could create new security risks.
· Technology
- Ethereum Foundation Explores Rules to Check Transaction Results
Native Transaction Assertions would check changes to balances, contract storage, code and events. EIP-7906 is one candidate implementation.
· Technology
- Zano Rewinds a Month of Blockchain History After Token Exploit
The exploit created about 36.9 million counterfeit ZANO and 1.8 trillion Freedom Dollar (fUSD) tokens that could move like genuine assets.
· Technology
- Arbitrum Blocks New Stylus Contract Activations on One and Nova
The precautionary measure targets a potential attack involving WebAssembly programs built with nonstandard Stylus compiler tools; existing apps and Solidity contracts remain unaffected.
· Technology
- Arbitrum Halts New Stylus Activations and Adds a BoLD Guard
Existing Stylus contracts can continue running and renewing. The guard may delay withdrawals that have not been confirmed if it accepts contradictory proofs.
· Technology
- Optimism Updates op-reth With Rust Advisories and Import Changes
Version 2.5.0 removes two commands for importing pre-Bedrock history. Operators who used them need to change their history setup before upgrading.
· Technology
- Cosmos Hub Resumes After 24.5-Hour Halt With ATOM Recovery Patch
The update moved 1,227,121.37 ATOM into a recovery multisig. A separate 168,990.9 ATOM refund later reached the attacker’s address and was moved out.
· Technology
- Zano Restarts Blockchain at Block 3,833,000 After Vulnerability
The emergency update disabled Gateway Addresses and excluded roughly one month of transactions from the recovered chain. Service providers must upgrade before resuming transfers.
· Technology
- Project Eleven Acquires Riva Labs for Post-Quantum Crypto Security
The deal adds Riva’s wallet, hardware-signing and cryptography technology to Project Eleven’s effort to help digital-asset networks prepare for quantum computing threats.
· Technology
- Zano Rolls Back One Month of Transactions After Gateway Vulnerability
The recovery plan includes developer funds, team members’ personal money and contributor support, but payment rules and amounts remain undisclosed.
· Technology
- Liquid Network Starts External Audit as Peg-Out Keys Are Updated
The review covers Elements v23.3.4 while the Federation coordinates changes to its peg-out authorization key list and keeps withdrawals paused.
· Technology
- Arbitrum Foundation Launches Program to Cover Smart-Contract Audit Costs
The Arbitrum Security Program covers testnet applications, mainnet projects, migrating projects and chains built specifically for Arbitrum.
· Technology
- THORChain Says Network Halt Is Emergency Security Measure
The protocol said the pause was not a selective freeze of specific funds or an individual swap. A May security incident saw $10.7 million stolen from liquidity pools.
· Technology
- Solana Study Finds Protected Transaction Flows Do Not Stop Sandwich Attacks
Researchers detected 28,042,725 protected-flow sandwich attacks from July 1, 2023, through June 30, 2026, generating an estimated $345.2 million in net profit after fees.
· Technology
- Zano Restarts Blockchain After Gateway Address Vulnerability
The restart begins at block 3,833,000 and removes about one month of on-chain history. Unauthorized ZANO and fUSD issuance will be eliminated through the recovery.
· Technology
- Zano Rolls Back a Month of Blockchain History After Vulnerability
The privacy blockchain restarted at block 3,833,000, before Hard Fork 6, after unauthorized ZANO and fUSD entered circulation.
· Technology
- Zano Restarts Blockchain, Erasing a Month of Transaction History
The emergency restart removed unauthorized ZANO and fUSD issuance linked to a Gateway Address vulnerability while preserving wallet keys and ordinary transaction privacy.
· Technology
- Yuga Labs Opens Claims Portal for 3,832 NFTs in Limited Test
Users can check which NFTs they may be eligible to claim. A dedicated address is accepting Ether and other token donations.
· Technology
- Zano Plans 24-Hour Blockchain Rollback After Inflation Bug
The privacy-focused network told users to halt activity involving ZANO and Confidential Assets while it prepares the rollback.
· Technology
- Cosmos Hub Moves 1.227 Million ATOM Into Recovery Multisig
The transfer followed a Neutron governance attack that drained protocol liquidity. Cosmos Hub itself was not attacked, and user funds were unaffected.
· Technology
- Quantum Upgrades Could Make Blockchains More Attractive to Financial Institutions
Quantum computing threatens today’s public-key cryptography, while Ethereum targets full post-quantum resistance across its core layers by December 2029.
· Technology
- MultiversX Restarts Block Production After Five-Day Exploit Halt
The network resumed Sept. 24, but Kraken kept MultiversX (EGLD) markets in cancel-only mode with deposits and withdrawals paused.
· Technology
- Magic Eden Says Current EVM Listings Are Unaffected by Vulnerability
Users who listed or traded NFTs on Magic Eden’s EVM marketplace from February through October 2024 should revoke contract approvals on Ethereum, Polygon and Base.
· Technology
- Tezos Tests Quantumnet in Early Quantum-Defense Effort
The experimental network evaluates post-quantum cryptography across accounts, consensus and data availability before any potential live-network upgrade.
· Technology
- EU Regulators Warn Quantum Computing Could Weaken Blockchain Security
The risk could emerge before any commercially viable quantum application, putting cryptography used in communications, transactions, databases and blockchains under scrutiny.
· Technology
- Estimated Cost to Prepare Quantum-Safe Bitcoin Transaction Falls 79%
Optimization work cut the estimated GPU cost from about $320 to $66. The experimental design uses hash-based protection without changing Bitcoin’s consensus rules.
· Technology
- Cosmos Hub Restarts After 25-Hour Halt, Moves $2.1 million in ATOM
Validators restarted the network Sept. 23 after a Neutron governance attack, then moved 1,227,121 ATOM from a wallet linked to the attacker.
· Technology
- Aptos Patches Critical Flaw That Put $70 Billion in Assets at Risk
Aptos fixed a critical Move VM vulnerability flagged by Hexens that could have exposed up to $70 billion in assets, highlighting ongoing security risks in smart contract ecosystems.
· Technology
- Ripple Sets 2028 Timeline for Quantum-Resistant Upgrade on XRP Ledger
Ripple unveiled a multi-year plan to transition the XRP Ledger to quantum-resistant cryptography by 2028 in partnership with Project Eleven to enhance long-term network security.
· Technology
- Quantum Threat Debate: Ethereum Seen More Exposed Than Bitcoin
Analysts say Ethereum’s account model and broader cryptographic exposure could make it more vulnerable than Bitcoin under a future quantum computing threat.
· Insights & Views