Date of Incident: October 2025 Overview: In October 2025, Substack experienced a data breach where unauthorized access led to the theft of 697,313 user records, involving email addresses, phone numbers, and internal metadata. Credentials and financial information remained secure, but the exposed personal data heightened the risk of phishing attacks. The breach exploited exposed APIs… Read More »Substack Data Breach
Date of Incident: 2025 Overview: In the Grubhub Data Breach of 2025, hackers from the ShinyHunters group accessed Grubhub’s systems, targeting older Salesforce and newer Zendesk data. The breach, discovered and reported in early 2026, left financial information and order history untouched. Attackers utilized MITRE ATT&CK techniques T1078 (Valid Accounts) and T1566 (Phishing) to infiltrate… Read More »Grubhub Data Breach 2025
Between January 7-12, 2026, four developments stand out for enterprise defenders: n8n CVE-2026-21858 (Ni8mare): A maximum-severity (CVSS 10.0) unauthenticated remote code execution vulnerability in n8n workflow automation platform, enabling complete infrastructure takeover through content-type confusion. The vulnerability was disclosed January 7, 2026, with proof-of-concept exploit publicly available; 26,500+ internet-exposed instances remain at risk. Trust Wallet… Read More »Weekly Report: New Hacking Techniques and Critical CVEs 7 Jan – 12 Jan 2026
Between 2-10 December 2025, three developments stand out for enterprise defenders: Shai-Hulud 2.0 npm worm: A rapidly evolving supply chain threat abusing npm and GitHub Actions to build a self-propagating CI/CD worm, with active reporting and defensive guidance released during this week. The underlying campaign began in September but continued and evolved into December, especially… Read More »Weekly Report: New Hacking Techniques and Critical CVEs 2 Dec – 10 Dec 2025
From December 2-10, 2025, disclosures around an Oracle E‑Business Suite campaign, a large third‑party fintech breach, and several sector‑specific data exposures highlighted how platform and vendor compromises are driving multi‑organization risk. University of Phoenix confirmed a significant Oracle EBS breach tied to CVE‑2025‑61882, Marquis Software’s ransomware breach impacted over 74 U.S. banks and credit unions,… Read More »Weekly Cybersecurity Intelligence Report Cyber Threats & Breaches 2 Dec – 10 Dec 2025
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