This Day in Cyber History
Browse historical cyberattacks, unsealed federal indictments, and CISA advisories that occurred on today's calendar date, or jump to any day of the year.
Key Facts
- Historical calendar indexing 96 landmark cyberattacks, court indictments, and CISA advisories by day of the year.
- Explore landmark anniversaries from the NotPetya global blackout to the Colonial Pipeline shutdown.
- Automated public REST API and RSS feed available for security teams, Slack bots, and threat intelligence standups.
Events on This Date
Historical record across the primary source library.
Calendar-Based Threat Briefings & Readiness Reviews
Security operations centers, university cybersecurity courses, and compliance teams use daily incident anniversaries to contextualize seasonal adversary targeting. Historical court unsealings and holiday-weekend ransomware spikes (such as the Fourth of July Kaseya REvil supply chain campaign or Memorial Day JBS extortion) reveal recurring operational patterns when defenders are short-staffed.
Automate Daily Briefings via API & Timeline
Every calendar entry maps back to sworn indictments, CISA advisories, or judicial forfeiture orders across 96 landmark matters. Query daily matches programmatically through our open JSON endpoints, explore the full chronological sweep in the Historical Timeline, or drill into Cyber Facts & Forensics.