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AI Security

Articles about "AI Security"

43 articles

43 articles (showing 12)

Hit by a Cyberattack in Japan? First Steps for Individuals and Companies

In late September and early October 2026, several major South Korean banks disclosed cyberattacks. If the same happened in Japan, what should customers and companies do first? Working from primary sources, this article covers self-reporting to Japan's three credit bureaus, police and consumer hotlines, the deadlines for breach reports to the Personal Information Protection Commission, and reporting under Japan's new active cyber defense law.

2026-10-04Ryuta Hamamoto

AI Security

Does Blocking Foreign Traffic Work? What Japan's Residential Proxy Data Shows

Country-level blocking cuts down automated scans and DDoS noise, but Japanese authorities now state plainly that attackers routing through hijacked home devices can reach servers that restrict overseas access. This piece looks at where attacks appear to come from, where geo-blocking stops working, why allow lists beat deny lists for admin panels, and how to keep your own devices from becoming someone else's attack exit.

2026-10-04Ryuta Hamamoto

AI Security

Lessons from Japan's 2026 Breaches (Part 1): AI-Driven Attacks and Protecting ID Documents

Twelve Japanese organisations disclosed breaches between June and September 2026. This first part lays out what each one officially said, what public statistics show they have in common, how AI and AI agents are changing the risk, and, using the Times Car disclosure as a starting point, how any company should think about storing and encrypting ID documents.

2026-09-30Ryuta Hamamoto

AI Security

Lessons from Japan's 2026 Breaches (Part 2): Endpoint Security and a Checklist for Small Firms

Part 2 of our look at the wave of unauthorized-access incidents disclosed in Japan in 2026. Using public guidance from Japanese and US agencies, it covers what companies can do now: patching VPN appliances, phishing-resistant MFA, PC and endpoint basics (EDR, disk encryption, admin rights, infostealers), backups, vendors and AI agents, what to do when a breach is found, and a prioritized checklist for small businesses.

2026-09-30Ryuta Hamamoto

AI Security

Amodei's "We Must Pace the Frontier," Explained, With My View From Japan

On September 12, 2026, Anthropic CEO Dario Amodei published "We Must Pace the Frontier," arguing that the industry should deliberately slow the rate of AI capability gains. Within hours, Sam Altman said OpenAI "will do the same" on embedded evaluators and Elon Musk posted "Dario is right." This article walks through the essay section by section, explains the two triggers behind it with primary sources, recursive self-improvement and the incident in which roughly 1,200 agents coordinated on an unsanctioned message board and compromised Hugging Face, reads the three-step plan and its geopolitical caveat, and closes with my own view from the standpoint of a Japanese company.

2026-09-13濱本隆太

AI Security

What the Digital Agency's GSS Breach Teaches Companies About VPN Patching

On 11 September 2026, Japan's Digital Agency disclosed unauthorized access to GSS, the shared work environment for government staff. The entry point was a publicly known VPN vulnerability rated "Medium". This piece walks through the official disclosure, why severity-ordered patching did not arrive in time, why VPN appliances have become the most common way in, why zero trust did not prevent it, and what any organisation can change this week.

2026-09-11Ryuta Hamamoto

AI Security

What Sakura Internet's Breach Disclosure Teaches Us | Designing for the Day Your Cloud Provider Is Compromised

In August 2026, Sakura Internet disclosed unauthorized access to its hosting environment and later to its sales management system. This is not a piece about what the company did wrong. It walks through why provider-side intrusions happen, what legal duties stay with the customer, and how to read the scope of an ISMAP registration before you rely on it.

2026-08-19Ryuta Hamamoto

AI Security

Why Does Personal Data Leak from GitHub? Development Security Lessons for the AI Era from Money Forward's Disclosed Incident [2026 Checklist]

A fact-based review of the GitHub unauthorized-access incident that Money Forward disclosed in May 2026, drawing only on the company's official announcements.

2026-07-07Ryuta Hamamoto

AI Security

Inside the EU AI Act "Simplification": Implementation Steps for Japanese Companies Using the Digital Omnibus 2026 and ISO/IEC 42001

Inside the EU AI Act "Simplification": Implementation Steps for Japanese Companies Using the Digital Omnibus 2026 and ISO/IEC 42001.

2026-06-08Ryuta Hamamoto

AI Security

AI Security Regulation & Certification Master Guide 2026: Region × Stance × Effective-Date Matrix for Japanese Priority Setting

Across this series I have written 10 country and region AI regulation pieces, 7 certification guides, 3 level-specific deep dives, and 2 incident analyses.

2026-05-20Ryuta Hamamoto

AI Security

California AI Rules in Three Layers: Reading SB 53, AB 2013, and SB 942 by Who Is Covered

If you treat "California AI regulation" as one law, implementation will fail. In practice, three different statutes run in parallel in the same state.

2026-05-20Ryuta Hamamoto

AI Security

Sixteen Months After AIDA Died: Canada’s Federal AI Gap, “light, tight, right,” and the Provincial Patchwork

On January 6, 2025, Justin Trudeau announced his resignation and the Canadian Parliament entered prorogation.

2026-05-20Ryuta Hamamoto