Enclosed please find an update on the captioned subject,

August 10, 2026 The General Manager The Manager BSE Limited National Stock Exchange of India Limited Listing Department Listing Department Phiroze Jeejeebhoy Towers Exchange Plaza Dalal Street 5th Floor, Plot No. C-1, Block-G Mumbai- 400 001 Bandra-Kurla Complex, Bandra(E) Mumbai-400 051 BSE Scrip Code: 532281 NSE Scrip Code: HCLTECH Subject- Clarification on media alerts regarding potential data breach Dear Sir/ Madam, This is with reference to some media alerts regarding claims made by a hacker group of potential exposure of limited data elements relating to HCLTech employees. In this regard this is to clarify that the Company’s initial investigation has revealed that the aforesaid data may be limited and dated to a few years back. There is no evidence of breach to the Company’s systems or engagement with any of the Company’s clients. The Company, however, is undertaking further investigation, and any material findings in this regard will be reported. The Company considers cyber security as its top priority and remains committed to protecting the information entrusted to it. This is for your information and records. Thanking you, Yours faithfully, For HCL Technologies Limited Manish Anand Company Secretary HCL Technologies Ltd. Technology Hub, Special Economic Zone Corporate Identity Number: L74140DL1991PLC046369 Plot No. 3A, Sector 126, NOIDA– 201304, UP, India Registered Office: t: +91 120 4306000 806 Siddharth, 96, Nehru Place, New Delhi -110019, India