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SEC cyber incident disclosure

SEC rule requiring public companies to disclose material cybersecurity incidents via Form 8-K, typically within four business days of determining materiality.

Current stories

securityConfirmed9 publishers

McKesson's 8-K locates the stolen data inside third-party applications

The distributor found the intrusion on August 25, 2026, the same day ShinyHunters says its four-day exfiltration ended. It has not named the vendor applications involved, so customers are left scoping their own integrations.

Perspective Coverage

9 publishers
Builder
Builder 17%
Operator
Operator 66%
Investor
Investor 17%

Reality

Evidence50
Adoption
Insufficient
Hype gap+40
Incentives70
Confidence55
securityConfirmed6 publishers

CenterPoint confirms a customer data theft it learned about from a dark web post

CenterPoint Energy's 8-K says an unauthorized party took customer personal information through an external-facing system. The person selling the file says it came out of a public API with no rate limiting.

Perspective Coverage

6 publishers
Builder
Builder 25%
Operator
Operator 54%
Investor
Investor 21%

Reality

Evidence60
Adoption
Insufficient
Hype gap+20
Incentives65
Confidence60
securityConfirmed3 publishers

Nutex discloses stolen patient data breach to SEC, says it is still assessing what was taken

The Gentlemen gave the Houston hospital operator nine days to pay after an August 31 filing confirmed patient, employee and provider files were taken, and a class action had already landed on August 27.

Perspective Coverage

3 publishers
Builder
Builder 15%
Operator
Operator 57%
Investor
Investor 28%

Reality

Evidence68
Adoption62
Hype gap+8
Incentives76
Confidence72