McKesson8-K: Internal control weaknessAug 28, 2026

McKesson discloses cybersecurity incident discovered on August 25, 2026

What happened

This event signals potential vulnerabilities in IT controls and will likely drive immediate spending on security solutions and services to mitigate damage and prevent future breaches.

Source

SEC EDGARAug 28, 2026

Current report (Form 8-K)

McKesson 8-K

Filing excerpt

On August 25, 2026, McKesson Corporation discovered a cybersecurity incident affecting its information systems.

sec.gov/Archives/edgar/data/927653/000092765326000247/mck-20260825.htmRead the full source

Other signals in this filing (1)

Cybersecurity incidentMcKesson discloses cybersecurity incident discovered on August 25, 2026Cybersecurity incidentAug 28, 2026

Extracted by Autobound

From the Signal API record

Signal: 8-K: Internal control weakness

What this signalsFilings often name leadership changes, deals and spending plans.

Form: 8-K
Fiscal year end: 08/25
Filed: Aug 28, 2026

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The full record

From the Signal API record

Details

CIK: 927653
Accession number: 0000927653-26-000247
Timeframe: Immediate
Filing year: 2026
Why it matters: Compliance monitoring needed
Signal category: Risk

Topics and mentions

Technologies

cybersecurity

Extraction

Confidence: High
Relevance: 90%
Sentiment: Negative
Detected: Sep 1, 2026
signal_type: sec-8k
signal_subtype: internalControlWeakness

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The API returns more than this page shows

This page shows a preview. The full sec-8k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

linkedin_urlValue in the API
industriesValue in the API
employee_count_lowValue in the API
employee_count_highValue in the API
revenueValue in the API
descriptionValue in the API

Signal

signal_nameValue in the API
associationValue in the API

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Show the full JSONThe record on this page and the API request

GET /v1/signals/b6c69406-e72a-4512-bfa5-ee287f248a20 returns this record as JSON. POST /v1/companies/enrich returns every signal for mckesson.com.

{
  "signal_id": "b6c69406-e72a-4512-bfa5-ee287f248a20",
  "signal_type": "sec-8k",
  "signal_subtype": "internalControlWeakness",
  "detected_at": "2026-09-01T07:05:58.088+00:00",
  "company": {
    "name": "McKesson",
    "domain": "mckesson.com"
  },
  "data": {
    "detail": "The company is in the early stages of investigating a cybersecurity incident, creating an urgent need for forensic, remediation, and security posture review. This event signals potential vulnerabilities in IT controls and will likely drive immediate spending on security solutions and services to mitigate damage and prevent future breaches.",
    "metrics": {
      "timeframe": "immediate"
    },
    "summary": "McKesson discloses cybersecurity incident discovered on August 25, 2026",
    "excerpts": "On August 25, 2026, McKesson Corporation discovered a cybersecurity incident affecting its information systems.",
    "relevance": 0.9,
    "sentiment": "negative",
    "confidence": "high",
    "source_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765326000247/mck-20260825.htm",
    "filing_date": "2026-08-28",
    "filing_year": 2026,
    "fiscal_year_end": "08/25",
    "sales_relevance": "Compliance monitoring needed",
    "signal_category": "risk",
    "technologies_mentioned": [
      "cybersecurity"
    ]
  }
}

curl https://signals.autobound.ai/v1/signals/b6c69406-e72a-4512-bfa5-ee287f248a20 \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"mckesson.com","limit":20}'

Long text fields are shortened on this page.

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