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Vol. 1 · Ed. 2026
CyberGlossary
Entry № 1090

SEC Cybersecurity Disclosure Rules (2023)

SEC Cybersecurity Disclosure Rules (2023) とは何ですか?

SEC Cybersecurity Disclosure Rules (2023)U.S. Securities and Exchange Commission rules adopted in July 2023 requiring public companies to disclose material cyber incidents on Form 8-K within four business days and to describe their cybersecurity risk management, strategy, and governance annually on Form 10-K.


The SEC's Cybersecurity Disclosure Rules, finalized 26 July 2023 and largely effective by December 2023, materially changed cyber-incident reporting for U.S.-listed companies. Public registrants must file Form 8-K Item 1.05 within four business days of determining that a cybersecurity incident is material, describing its nature, scope, timing, and material impact (including reasonably likely impacts). Determination of materiality must be made 'without unreasonable delay'. Annually, the 10-K must include Item 106 disclosures on processes for assessing/managing cyber risk, the role of management and the board in cyber oversight, and any material risks from cyber threats. A narrow law-enforcement-delay carve-out exists when the U.S. Attorney General determines that disclosure would substantially threaten public safety or national security. Foreign private issuers face analogous obligations on Form 6-K and 20-F. Since the rule took effect, dozens of 8-Ks have been filed (MGM Resorts, Clorox, Caesars, ScreenConnect/ConnectWise, Halliburton, CDK Global, UnitedHealth, etc.), and the SEC has separately pursued enforcement against issuers for misleading or absent disclosures.

  1. 01

    A retailer files an 8-K Item 1.05 within four business days of determining that a ransomware incident is material, then files amendments as scope is clarified.

  2. 02

    A 10-K Item 106 section describes the board's quarterly cybersecurity oversight cadence, the CISO's reporting line, and the use of an external IR retainer.

よくある質問

SEC Cybersecurity Disclosure Rules (2023) とは何ですか?

U.S. Securities and Exchange Commission rules adopted in July 2023 requiring public companies to disclose material cyber incidents on Form 8-K within four business days and to describe their cybersecurity risk management, strategy, and governance annually on Form 10-K. サイバーセキュリティの コンプライアンスとフレームワーク カテゴリに属します。

SEC Cybersecurity Disclosure Rules (2023) とはどういう意味ですか?

U.S. Securities and Exchange Commission rules adopted in July 2023 requiring public companies to disclose material cyber incidents on Form 8-K within four business days and to describe their cybersecurity risk management, strategy, and governance annually on Form 10-K.

SEC Cybersecurity Disclosure Rules (2023) はどのように機能しますか?

The SEC's Cybersecurity Disclosure Rules, finalized 26 July 2023 and largely effective by December 2023, materially changed cyber-incident reporting for U.S.-listed companies. Public registrants must file Form 8-K Item 1.05 within four business days of determining that a cybersecurity incident is material, describing its nature, scope, timing, and material impact (including reasonably likely impacts). Determination of materiality must be made 'without unreasonable delay'. Annually, the 10-K must include Item 106 disclosures on processes for assessing/managing cyber risk, the role of management and the board in cyber oversight, and any material risks from cyber threats. A narrow law-enforcement-delay carve-out exists when the U.S. Attorney General determines that disclosure would substantially threaten public safety or national security. Foreign private issuers face analogous obligations on Form 6-K and 20-F. Since the rule took effect, dozens of 8-Ks have been filed (MGM Resorts, Clorox, Caesars, ScreenConnect/ConnectWise, Halliburton, CDK Global, UnitedHealth, etc.), and the SEC has separately pursued enforcement against issuers for misleading or absent disclosures.

SEC Cybersecurity Disclosure Rules (2023) からどのように防御しますか?

SEC Cybersecurity Disclosure Rules (2023) に対する防御は通常、上記の定義で述べたとおり、技術的統制と運用上の実践を組み合わせます。

SEC Cybersecurity Disclosure Rules (2023) の別名は何ですか?

一般的な別名: SEC 8-K Item 1.05, SEC cyber disclosure rule。

関連用語