HackerOne Affected by Klue Supply Chain Attack
Cybersecurity firm HackerOne was among the organizations impacted by the Klue supply chain attack, which involved unauthorized access to customer data within Salesforce environments. The attack leveraged compromised OAuth tokens from the Klue platform.
Signal context
First seen: Jun 24, 2026
Last updated: Jun 24, 2026
Status: Public signal
Key points
- Supply chain attack via Klue, a third-party vendor.
- Salesforce data accessed using compromised OAuth tokens.
- Exfiltrated data: sales account data, business contact information (names, email addresses, job titles, phone numbers).
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Information
Likely country: Location not provided
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
Likely asset: User or customer data
- 23 signals in the same sector
- 68 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
More Cybersecurity Firms Disclose Impact From Klue Hackhttps://www.securityweek.com/more-cybersecurity-firms-disclose-impact-from-klue-hack/Public source from securityweek.com.
Related signals
Grouped by why the signal is relevant.
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