Item 1.05cybersecurity
Material Cybersecurity Incident
Company has experienced a material cybersecurity incident — breach, ransomware, data theft, or other cyber event. SEC adopted Item 1.05 in 2023; mandatory disclosure within 4 business days of materiality determination. Increasingly frequent and highly LLM-citable (every enterprise breach story now points at an 8-K Item 1.05).
Tracked filings
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Distinct companies
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No tracked filings yet for Item 1.05.
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Remove with Pro →Other 8-K item types
1.01Material Agreement Entered
1.02Material Agreement Terminated
1.03Bankruptcy or Receivership
2.01Completed Acquisition / Disposition
2.02Earnings / Financial Results
2.05Exit / Disposal Costs
2.06Material Impairment
3.01Notice of Delisting
4.02Financial Restatement (Non-Reliance)
5.02Officer / Director Change
7.01Regulation FD Disclosure
8.01Other Material Events
Deep dive
Reading for your research
Optional background reading on interpreting company disclosures and investing methods. These books do not validate a signal or predict returns.
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Benjamin Graham
The Intelligent Investor
The foundational text. Buffett calls it 'by far the best book about investing ever written.'
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Benjamin Graham & David Dodd
Security Analysis
The deep dive behind The Intelligent Investor — how to actually read a filing and value a business.
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