Klue Data Breach Leads to Salesforce Customer Data Exposure
Market intelligence platform Klue experienced a data breach, uncovered on June 12, 2026, where attackers stole OAuth tokens used to access customer data from Salesforce. The Icarus group claimed responsibility, leaking business contacts, sales notes, and pricing details from multiple victims. The incident was widely reported on June 24, 2026.
Signal context
First seen: Jun 24, 2026
Last updated: Jun 26, 2026
Status: Public signal
Key points
- Breach uncovered on June 12, 2026, and reported on June 24, 2026.
- Icarus group claimed responsibility.
- Stole OAuth tokens used to query Salesforce APIs.
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
- 29 signals in the same sector
- 93 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
Klue OAuth breach victim list grows as Icarus hackers claim attack - Bleeping Computerhttps://www.bleepingcomputer.com/news/security/klue-oauth-breach-victim-list-grows-as-icarus-hackers-claim-attack/Public source from bleepingcomputer.com.
Cybersecurity Firms Impacted by Klue Supply Chain Attack - SecurityWeekhttps://www.securityweek.com/cybersecurity-firms-impacted-by-klue-supply-chain-attack/Public source from securityweek.com.
Scope of Salesforce Attacks Expands as Icarus Leaks Data - Cyber Recapshttps://cyberrecaps.com/news/cybersecurity-news-june-24-2026/Public source from cyberrecaps.com.
LastPass hit by new data breach - 4 steps you should take now | ZDNEThttps://www.zdnet.com/article/lastpass-new-data-breach-2026-steps-to-take-now/Public source from zdnet.com.
Related signals
Grouped by why the signal is relevant.
AgelessRx Data Breach Exposes Patient Health Information
AgelessRx, a telehealth platform specializing in longevity and anti-aging treatments, disclosed a data breach. An unauthorized actor gained access to certain help-desk tickets within the company's system between April 17 and April 22, 2026. The breach exposed sensitive patient health information, including names, dates of birth, health diagnoses or conditions, medications, and prescription details. The incident was reported to attorneys general on June 24, 2026, and notification letters to affected individuals began on June 23, 2026.
OneTrust Customer Data Exposed in Klue Supply Chain Attack
OneTrust, a privacy, security, and governance technology company, was among the organizations affected by the Klue supply chain attack. The incident involved unauthorized access to customer data within Salesforce environments, due to compromised OAuth tokens from the Klue platform.
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.
Snyk Affected by Klue Supply Chain Data Breach
Developer security platform Snyk was impacted by the Klue supply chain attack, which led to unauthorized access to customer data within Salesforce environments. The attack leveraged compromised OAuth tokens from the Klue platform.
Jamf Customer Data Exposed in Klue Supply Chain Attack
Jamf, a provider of Apple device management solutions, was impacted by the Klue supply chain attack. The incident involved unauthorized access to customer data stored in Salesforce instances, stemming from compromised OAuth tokens from the Klue platform. The Icarus extortion group claimed responsibility for the attack.
Sprout Social Data Compromised in Klue Supply Chain Attack
Sprout Social, a social media management platform, was among the companies affected by the Klue supply chain attack. The incident led to unauthorized access to customer data within Salesforce environments, due to compromised OAuth tokens from the Klue platform. The Icarus extortion group claimed responsibility for the attack.