☑️ Weekly Darkweb – April Week 4, 2026

🔍 Israel INSS 15TB Classified Data Reportedly Offered for Sale on Dark Web

• On April 20, a post was identified offering 15TB of classified data from Israel’s Institute for National Security Studies for sale for $800 on the dark web hacking forum ‘DarkForums.’

✓ Institute for National Security Studies (INSS): Israel’s leading security and strategic think tank conducting research on national security strategy.

• A forum user ‘SumudCyberCommand’ claimed access to over 9 million files, including WhatsApp chats of Israeli politicians, internal emails, Iran–Russia military and joint weapons development materials, Iranian sanctions evasion records, and Chinese visa information, as well as chats of a former Israeli Justice and Interior Minister.

• The seller also provided a sample data download link and stated that cyberattacks would continue until Palestine is liberated.

🔍 Japan Convenience Store Giant ‘S’ Internal Data Leaked on Dark Web

• On April 18, Japan convenience store giant ‘S’ was listed on the ShinyHunters ransomware gang’s dark web leak site.

✓ ‘S’ operates over 80,000 stores worldwide and reported Japan sales of about 5 trillion yen last year.

• The threat actor claimed it stole about 600,000 Salesforce records containing customer personal data from ‘S’ and demanded $250,000 in ransom.

• On April 22nd, the threat actor released the stolen data, claiming negotiations with the victim company had failed.

→ The ShinyHunters group has claimed since February that it has stolen Salesforce data from U.S. railroad company ‘A’ and financial company ‘M’ and posted it on its leak site.

🔍 Middle East’s Largest Aluminum Company ‘A’ Targeted by INC Ransomware

• On April 17, Saudi Arabia-based aluminum giant ‘A’ was identified on the INC ransomware gang’s data leak site.

✓ ‘A’ holds about 40% of the Middle East and North Africa market and ranks among Saudi Arabia’s top 100 companies with over $400 million in annual revenue.

• The INC ransomware gang released 787GB of confidential data, including aluminum production data (sheets, assembly, specifications, manuals, and drawings), contracts, financial records, customer data, and HR information.

• Large-scale data leaks at global manufacturing companies could impact trade secrets, supply chain trust, regulatory compliance, and result in significant financial liability.

*The full report is available upon request and for XARVIS subscribers.