Coverage of #security spans 862 indexed articles, with 378 published in the last 30 days. Recent discussion leans bearish, at 49.7% negative sentiment versus 46.8% bullish, though sentiment has remained stable over the past month. Top sources include arXiv's computer science and AI research, along with cryptocurrency-focused outlets like Crypto Briefing and Blockonomi. The tag frequently intersects with #ai, #bitcoin, and geopolitical concerns, with Anthropic and Claude among the most-discussed entities. Bitcoin and Ethereum dominate ticker mentions in this coverage area. Explore the articles below to understand the full scope of recent #security developments.
Ransomware attacks surged 50% in 2025 with nearly 8,000 incidents recorded, but hackers earned less money than the previous year according to Chainalysis research. Despite the increased frequency of attacks, the cybercrime business appears to be generating lower returns per incident.
South Korean police lost $1.4 million in Bitcoin that they had seized in 2021, storing it in a third-party wallet that was later accessed by unauthorized parties. Two individuals have been arrested in connection with the incident, which went undiscovered for four years.
South Korean police improperly handled $1.4 million worth of confiscated Bitcoin, resulting in the loss of the cryptocurrency assets. Suspects have been arrested in connection with the incident involving the mishandled police procedures.
IronCurtain is a new open source project that implements a unique security method to constrain AI assistant agents and prevent them from going rogue. The project aims to provide safeguards for AI systems before they can cause disruption to users' digital environments.
The article explores libsecp256k1, a cryptographic library that began as a small hobby project but evolved into one of Bitcoin's most critical security components. This library now protects a multi-trillion dollar asset and represents a crucial piece of Bitcoin's cryptographic infrastructure.
Ransomware payments reached over $800 million in 2025 according to Chainalysis data. While hackers' total earnings decreased compared to the previous year, individual victims who chose to pay ransoms faced significantly higher payment amounts.
South Korean police lost $1.4 million worth of Bitcoin due to improper custody practices, using an unnamed third-party wallet instead of following official guidelines that had been issued two months earlier. This incident highlights ongoing security and procedural challenges faced by law enforcement agencies when handling seized cryptocurrency assets.
OKX cryptocurrency exchange has expanded its partnership with Chainalysis to implement Alterya, a proactive fraud and scam prevention solution. This integration aims to detect and prevent fraudulent activities before they occur, enhancing security measures for the exchange's users.
CoinShares research reveals that only 8% of Bitcoin's total supply faces quantum computing risks in the next decade. The report suggests Bitcoin has approximately 20 years to implement necessary security upgrades before quantum threats become critical.
French police report that overseas criminal kingpins are orchestrating many recent cryptocurrency kidnapping attempts in France. This indicates an international organized crime network targeting crypto holders through kidnapping schemes.
Pig-butchering crypto scams are emerging as the fastest-growing fraud threat, utilizing sophisticated long-term trust-building tactics to manipulate victims. These scams weaponize personal relationships and trust to defraud individuals of their cryptocurrency investments.
Russian security forces arrested an individual accused of using cryptocurrency to raise $6,500 for armed terrorist groups. This incident highlights ongoing concerns about crypto being used for illicit financing and potential regulatory crackdowns.
South Korean police lost $1.8 million worth of Bitcoin due to security failures in their cryptocurrency management systems. Security experts are now calling for law enforcement agencies to completely overhaul their crypto custody and management procedures to prevent future losses.
Chainalysis announces that its Web3 security solution Hexagate is now available for MegaETH builders, providing real-time threat detection for smart contracts, tokens, and protocols. The solution uses advanced machine learning to detect suspicious patterns and blockchain transactions in real-time, helping developers identify execution risks, governance abuse, and token anomalies before they escalate.
OpenAI introduces new security features for ChatGPT including Lockdown Mode and Elevated Risk labels to help organizations protect against prompt injection attacks and AI-driven data exfiltration. These enterprise-focused security enhancements aim to address growing concerns about AI systems being exploited for malicious data access.
The Ethereum Foundation and Secureum TrustX hosted Trillion Dollar Security Day during Devconnect Buenos Aires, bringing together 80 Ethereum security practitioners. The focused event explored security requirements and infrastructure needed to support a trillion-dollar Ethereum economy.
AprielGuard appears to be a new safety framework or tool designed to provide guardrails for large language models (LLMs) to enhance both safety measures and adversarial robustness. This represents ongoing efforts in the AI industry to address security vulnerabilities and safety concerns in modern AI systems.
OpenAI is implementing automated red teaming with reinforcement learning to protect ChatGPT Atlas from prompt injection attacks. This proactive security approach aims to discover and patch vulnerabilities early as AI systems become more autonomous and agentic.
The article discusses the development of an L1 zkEVM focusing on security foundations, with contributions from Ethereum Foundation's cryptography team. The zkEVM ecosystem has achieved significant progress over the past year, reaching real-time operational capabilities.
The article discusses a partnership between a company and the UK government focused on artificial intelligence development and policy. The collaboration aims to support economic prosperity and national security considerations in the evolving AI landscape.
Decentralized messaging platforms are emerging as a superior alternative to traditional encrypted messaging by reducing metadata exposure, limiting centralized data requests, and preparing for post-quantum cryptographic threats. This shift represents a fundamental evolution in secure communications beyond just encryption.
Fake Cointelegraph social media accounts are increasingly targeting cryptocurrency users with scams and fraudulent schemes. The article explains how to identify these imposter accounts and provides guidance on verification methods to protect users from falling victim to these deceptive practices.
The Ethereum Foundation emphasizes the importance of privacy as a fundamental right that allows individuals to control what, when, and with whom they share information. The article discusses how privacy protections that are taken for granted in daily life are lacking in online and blockchain environments.
Fusaka announces a $2,000,000 audit contest co-sponsored by Gnosis and Lido, hosted on Sherlock platform. The four-week contest starting September 15th aims to identify vulnerabilities in the Fusaka upgrade before network deployment.
The Trillion Dollar Security project enters Phase 2, moving from ecosystem assessment to actively addressing the highest priority security issues across all layers of the Ethereum stack. The initiative has completed its survey phase and is now beginning implementation of improvements based on community feedback.
