Cognizant Hit by coinbasecartel Ransomware Group
Cognizant, a multinational IT and professional services company, fell victim to a ransomware attack by the coinbasecartel group.
Key points
- Ransomware attack by coinbasecartel group.
- Breach and discovery date: April 15, 2026.
- Infostealer activity detected, showing compromised employees and users.
Connected intelligence
Signal brief
Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.
Organization
- Published
- Apr 15, 2026
- Updated
- Jul 3, 2026
- Confidence
- High
- Evidence
- 2 sources
Structured assessment
Signal analysis
This 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.
Threat source
Watch ransomware, endpoint compromise and business interruption exposure.
Business impact
- Impact area
- Confidentiality, Availability
- Likely asset
- User or customer data
Mentioned entities
Quick context
Questions about this signal
What happened in this signal?
Cognizant, a multinational IT and professional services company, fell victim to a ransomware attack by the coinbasecartel group. The data breach was discovered on April 15, 2026, with the breach date also listed as April 15, 2026. Infostealer activity detected by HudsonRock indicated compromised employees and users.
When was this signal reported?
Shadow Tier lists Apr 15, 2026 as the signal date.
Which organization is connected to this signal?
Cognizant is the organization connected to this public signal.
Explore CognizantWhich attack pattern is relevant?
This signal is connected to current ransomware incidents based on its reported incident context.
Explore current ransomware incidentsRelated signals
Compare shared topics, actors and incident patterns before opening the full signal.
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Japan’s Nikkei has confirmed a major data breach that potentially exposed the personal information of more than 17,000 employees and business partners after hackers infiltrated its internal Slack messaging platform. Australian privacy commissioner warns that the human factor is a growing threat as notifications caused by staff mistakes rose significantly even as total breaches declined 10% from a record high. Philippine bank BDO is shoring up its cyber security capabilities to protect its data and systems as it moves more services to the cloud and expands its physical presence into remote areas of the archipelago. The agency is working with IBM, the Government Technology Agency and the Cyber Security Agency of Singapore (CSA) to establish the full facts and ensure remedial measures are taken. It has also lodged a police report and notified the Personal Data Protection Commission, and urged the public to remain vigilant against phishing emails, websites, text messages and phone calls from parties claiming to represent government agencies or other organisations. “We apologise for the concern and inconvenience this incident may cause,” the SLA said. The incident underscores the long-standing risk of real personal data finding its way into development and test environments , which are typically less closely guarded than production systems – a risk that is compounded when those environments are operated by third parties. It is also the latest in a series of supply chain security incidents in Singapore in recent years. In April 2025, Toppan Next Tech, a printing supplier for DBS Bank and the Singapore branch of Bank of China, was hit by a ransomware attack that saw customer data stolen by the threat actor . 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