Tata Consultancy Services controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2026
TCS denies data breach after threat-intelligence alerts
Company response
Tata Consultancy Services said it investigated threat-intelligence alerts alleging possible exposure of certain employee information and found no credible evidence of a breach of its systems or customer environments. The company stated that the referenced information appeared to be more than four years old and limited to basic employee information.
Company response
Denial — Tata Consultancy Services
The company has investigated the matter and has not found any credible evidence of a breach of TCS systems or customer environments
Ongoing disclosure — Tata Consultancy Services
The Company remains committed to maintaining the security and resilience of its systems and to protecting the information entrusted to us
Ongoing disclosure — Tata Consultancy Services
For now, TCS said it is continuing to monitor its environment and assess any additional information that may emerge.
Source excerpt
The information referenced appears to be more than four years old and limited to basic employee information.
the company has received threat-intelligence alerts alleging possible exposure of certain employee information
The attacker claims to have used password spray and Multi-Factor Authentication (MFA) fatigue as the attack vector.
2016
Epic Systems trade-secret litigation
Epic Systems accused TCS and Tata America International of misappropriating confidential information and trade secrets. A US jury initially imposed a substantial award, later modified through appeals and subsequent proceedings. The dispute concluded with a payment agreement reported in 2023.
2015
TCS files FIR over alleged defamatory messages
Lawsuit filed
Tata Consultancy Services filed a First Information Report against unknown persons over emails and social media posts that it described as defamatory and malicious. The report said the matter was being investigated by law enforcement agencies.
Company response
Ongoing disclosure — TCS
The matter is being investigated by law enforcement agencies.
Source excerpt
On Wednesday, at around 8pm, TCS filed a First Information Report (FIR) against “unknown persons” at the Thane police station.
TCS has filed a FIR against “Unknown Persons” for defamatory and malicious mails received as well as social media posts.
The matter is being investigated by law enforcement agencies.
2013
California wage and tax deduction class-action settlement
A US class-action case brought by non-US employees in California alleged that workers were required to endorse tax refunds to TCS and faced unauthorized deductions from pay. TCS agreed to a US$30 million settlement, which received final court approval in 2013.