Crypto
48 billion yen in bitcoin cryptocurrency disappears from Japan exchange
DMM Bitcoin Co., the operator of a Japanese cryptocurrency exchange, said Friday that digital assets worth at least 48.2 billion yen ($300 million) have disappeared for an unknown reason.
The Tokyo-based company under major IT firm DMM.com LLC said it detected the abnormality at around 1:26 p.m. the same day and suspended operations such as withdrawals of virtual currencies and the reviewing of applications for new accounts.
The amount of lost cryptocurrency is believed to be the second-largest ever in Japan, exceeded only by the 58 billion yen stolen from the Coincheck exchange in Tokyo in a similar incident in 2018.
Tokyo police will probe Friday’s case as they received an inquiry from DMM Bitcoin, according to an investigative source.
The company said it deals in around 40 kinds of cryptocurrencies. Its report for the business year to March 2023 said the number of accounts stood at some 377,000.
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Crypto
Stablecoin Settlement Is Here, but Seamless Off-Chain Money Movement Is Not | PYMNTS.com
The stablecoin industry has spent years trying to prove one thing above all else: that blockchain-based money can move faster, cheaper and more efficiently than the financial infrastructure it hopes to replace.
Crypto
Certik Unveils ‘Anti-Virus for AI Agents’ as Skill Marketplaces Face Hidden Threats
Key Takeaways
- Certik launched a security platform to provide an “anti-virus” layer for agent ecosystems.
- Sector audits reveal high risks, but CertiK aims to protect marketplaces with 90.5% scanning precision.
- Finchip.ai is among platforms expanding integrations ahead of future consumer-facing scan updates.
The Security Challenge
Blockchain and AI security firm Certik, on May 27, unveiled a new security platform designed to evaluate risks in third-party artificial intelligence (AI) skills. Dubbed the “anti-virus for AI agents,” the release comes amid growing industry concern over the security of AI skill marketplaces.
Security researchers have warned that many of these skills are unvetted, can execute system-level actions and may contain hidden malicious behavior, creating a new software supply chain risk for the AI era. Security audits across the sector have identified risks ranging from credential harvesting and data exfiltration to fund-transfer manipulation and prompt-based override attacks.
Despite these concerns, AI skill marketplaces have expanded rapidly as agent ecosystems mature. However, unlike traditional app stores, most skills are sourced from public repositories with little or no review. Analysts say this creates opportunities for attackers to embed harmful instructions, trigger unauthorized data access or manipulate autonomous execution flows.
In a recent blog post, Certik said its skill scanner platform is designed specifically to evaluate risks that emerge during execution, including scenarios involving financial transactions or fund calls. The scanner produces a numerical score from 0 to 100, along with “pass,” “warn” or “fail” verdicts and categorized findings. According to the company, the system achieves up to 90.5% precision in identifying security risks.
“As AI agents become more deeply integrated into financial systems, enterprise workflows and everyday digital interactions, the security model around third-party skills becomes critically important,” said Ronghui Gu, Certik’s CEO and co-founder. “CertiK Skill Scanner was built to establish a standardized trust layer before execution, helping users and platforms identify hidden risks before sensitive data, assets or systems are exposed.”
Certik said AI skill marketplaces can integrate the scanner directly into publishing pipelines, automatically reviewing skills before they go live and displaying security verdicts to users. Enterprises can deploy the tool as part of internal compliance and risk-management workflows, while independent developers can use it to self-audit skills before publishing.
The company said future updates will allow everyday users to scan skills themselves before installation. The scanner has already been deployed in select Web3 AI agent infrastructure environments. Certik is also expanding integrations with additional platforms, including Finchip.ai.
“Trust is the prerequisite for any skill economy to function at scale,” said Gary Yang, incubation investor at Finchip.ai. “CertiK’s work on skill security verification is exactly what this ecosystem needs. It’s what makes Finchip’s mission of programmable skill ownership and distribution worth building.”
The launch follows Certik’s expansion into AI-focused security infrastructure. Earlier this year, the company introduced its AI Auditor initiative to address risks tied to autonomous systems and AI-driven execution environments.
“AI applications are moving toward increasingly autonomous execution, which creates a new category of security and trust challenges,” Gu said. “We believe security infrastructure for the AI era must function proactively, not reactively.”
Crypto
FBI Seizes Over $8 Billion In Cryptocurrency As Part Of The Largest Forfeiture In US Government History
The FBI seized over $8 billion in cryptocurrency, freed nearly 2,000 trafficked workers, and arrested nearly 300 people in a recent international operation.
As part of the operation, authorities shut down several “scam compounds” and crime organizations, including groups known as the Prince Group in Cambodia, Operation Sand Dollar in Dubai, and the Democratic Karen Benevolent Army in Myanmar.
“Scam compounds are modern-day criminal enterprises built to steal from Americans, launder money, and exploit trafficked workers,” FBI director Kash Patel wrote on X announcing the results of the operation.
Fox News reports that the U.S. The Democratic Karen Benevolent Army, an armed militia named after a region in Myanmar that is allegedly connected to the Chinese mob, faces sanctions imposed by the U.S. Treasury. The government has classified it as a transnational criminal organization.
Images from an operation in Thailand reveal that the FBI confiscated office supplies and thousands of smartphones.

The FBI in Dubai will extradite six of the 275 individuals they and local police detained there to the United States to face federal charges, according to the FBI. The authorities raided nine “scam compounds” in Dubai, each allegedly generating $6 million in fraud proceeds annually.
Cryptocurrency scams in the US reached a record high in 2025
In April, an FBI report revealed that cryptocurrency scams in the U.S. reached a record high in 2025, with reported losses of almost $11.4 billion. According to the FBI, cyber-enabled crimes defrauded Americans of almost $21 billion in 2025, with the costliest complaints involving cryptocurrency and artificial intelligence (AI).
“The FBI’s 2025 Internet Crime Complaint Report highlights the ever-evolving tactics of internet scammers,” the FBI’s Baltimore office wrote on X. “From fake social media profiles to voice cloning and AI-generated content, cyber criminals are evolving.”
The Internet Crime Complaint Center (IC3) received over one million complaints in 2025, up from 859,532 in 2024. The most common complaints were about investment schemes, extortion, and phishing/spoofing.
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