Permit-based signatures fuel 2025’s wallet drains, as a $6.5 million DeFi theft shows. This Web3 security tool helps users by focusing on the ‘pre-sign’ moment.
Security News

Blockchain and cryptocurrency security is essential. After all, an autonomous monetary system can only go so far if it can be easily exploited by hackers, rendered inoperable through a mere software bug, or shut down by the powers that be.
Bitcoin’s unique security model is possible through a clever alignment of incentives between the network’s stakeholders — miners, developers, merchants and users. Any attempt to capture the network or reorganize the chain would result in the value of the currency plummeting and thus render any intended benefit completely worthless. The cost of being a bad actor significantly outweighs any possible reward.
Thus, it is in every participant’s best interest to simply play by the rules and collectively work toward the maturation and adoption of the Bitcoin (BTC) ecosystem.
Since its launch in January 2009, the Bitcoin network has never been compromised at the base layer and has had virtually 0% downtime, making it one of the most secure computer systems on the planet.
Cryptocurrency wallets, applications and exchanges that build products and services atop Bitcoin and other crypto networks, however, have frequently been the target of hacks and scams, highlighting the ongoing need to establish best practices around cybersecurity and operational security.
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Quantum computing could enable the reverse engineering of private keys from publicly exposed ones, putting the security of Bitcoin holders at risk.
- News
Japan is set to amend its rules, which would empower its securities regulator to investigate and punish those involved in crypto-related insider trading.
5667 - News
A Hyperliquid trader lost $21 million in a private key exploit, raising new concerns about DeFi security and user vigilance amid growing DEX activity.
4646 - News
Monero’s “Fluorine Fermi” update enhances privacy by fighting nodes that try to link user IP addresses to their transactions.
5393 - News
Ethereum devs have introduced Kohaku to enhance wallet privacy and security with modular tools, zero-knowledge recovery options and decentralized transaction handling.
3303 - Opinion
Fully Homomorphic Encryption could unlock trillions in traditional finance for DeFi by enabling private lending, encrypted credit scores and confidential transactions.
4200 - News
Crypto hack losses dropped 37% in Q3 to $509 million, but September saw a record surge in million-dollar incidents, led by exchange and DeFi exploits.
3247 - Explained
Former trader Josh Mandell claims quantum computers are draining old Bitcoin wallets. Experts disagree — here’s what the technology can (and can’t) do.
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SlowMist’s chief security officer said the phishing domains behind BNB Chain’s compromised X account are tied to the notorious Inferno Drainer group.
19681 - One-on-one
NGRAVE CEO Xavier Hendrickx breaks down the importance of a 100% air-gapped design and a user-friendly interface for true financial sovereignty.
11474 - News
AI threat detection and enhanced wallet management may save crypto firms from North Korean infiltrators, cybersecurity experts told Cointelegraph.
3118 - News
FearsOff CEO Marwan Hachem told Cointelegraph that it was risky to keep too much centralized control in projects that “claim to be decentralized.”
5249 - Defined
An edge-based blockchain tool makes IoT data tamper-proof, giving AI the trusted inputs for accurate and reliable decision-making in real time.
17754 - Opinion
Centralized deepfake detectors are failing against crypto scams. Blockchain-based detection networks offer the only scalable defense against AI fraud.
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