NATSEC agencies conduct cyber defence exercises to foil China and other adversaries
The cyber defence exercise comes after US experts found Chinese sleeper malware in Australia and Japanese networks as part of Quad cybersecurity cooperation.
New Delhi: With the cyberattack threat from China and other adversaries mounting by the day, the national security agencies, including the tri-services, are currently participating in a weeklong cyber defence exercise to test the resilience of India’s critical civilian and military infrastructure, officials familiar with the matter said on Saturday.

While the government is tight-lipped on this count, the cybersecurity exercises are being held under the aegis of the Defence Cyber Agency (DCyA) with other branches of national security participating in the effort to test the firewalls guarding India’s critical infrastructure.
The cyber defence exercise comes after US cyber experts found Chinese sleeper malware in Australia and Japanese networks as part of Quad cybersecurity cooperation.
Read: AIIMS cyber attack has origin in China, say investigators
“This malware is normally injected into the critical network and made to lie dormant for years. The bug is then activated by China any time it chooses to cripple the critical infrastructure or extract information,” said one of the officials cited above.
It is understood that the November 23, 2022, cyberattack on five servers of AIIMS in Delhi was engineered by China-based hackers and the cyber post-mortem of the attack showed that the malware or the bug to steal medical records was planted in the servers way back in 2014. On the military front, the 25-infantry division of Indian Army, based in Poonch, was cyber-attacked by the adversary during the Pakistani retaliation to the 2019 Operation Bander launched by the Indian Air Force (IAF) to destroy a Jaish-e-Mohammed terrorist training camp at Balakot in Khyber-Pakhtunkhwa on February 26. The Balakot operation was conducted by the IAF to avenge the killings of 40 CRPF troopers at the hands of a Jaish suicide bomber in Pulwama on February 14, 2019. The Pakistani retaliation to Balakot was launching of missiles at the Indian Army's brigade at Poonch on February 27, 2019.
Cybersecurity is also emerging as a key element of cooperation among Quad countries with the four leaders agreeing at Hiroshima this month to collaborate to enhance regional capacities and resilience to cyber incidents and threats. The Quad cyber challenge was held this year to promote cyber awareness and empower participants across the Indo-Pacific to protect themselves online.
Read: China was the elephant in the room in Quad summit in Hiroshima
The four countries have worked out the Quad joint principles for secure software and Quad joint principles for cybersecurity of critical infrastructure, and work is on to develop a framework for ensuring cyber security of supply chains and resilience. These principles are designed to strengthen regional defences against cyber threats to software supply chains, the digital economy, critical infrastructure, and services.
While the Indian national security agencies and tri-services network are protected by air gap and stand-alone servers, the Union government servers under the National Informatics Centre (NIC) are often cyber-attacked and compromised by India’s adversaries to glean confidential information and intelligence through planted malware. As the Indian economy expands in the digital dimension, security planners are reviewing the national networks to make them more resilient with stronger firewall architecture.
ABOUT THE AUTHORShishir GuptaShishir Gupta is Executive Editor at Hindustan Times and one of India's top journalists covering national security, strategic affairs, foreign policy and geopolitics. Over the past three decades, he has extensively reported on India's military, diplomatic and security landscape, covering every major conflict and national security challenge, from the 1999 Kargil War and the 2020 East Ladakh standoff to Operation Sindoor in 2025. He has also covered major terror attacks, including the IC-814 hijacking, the 26/11 Mumbai attacks and the 2025 Pahalgam terror strike, along with numerous Pakistan-backed terrorist incidents in the Kashmir Valley and across India. He has reported on national and state elections for more than three decades. A recognised authority on strategic affairs, Gupta has covered India's nuclear programme since the Pokhran-II (Shakti series) tests in May 1998 and has written extensively on global nuclear issues, Indian diplomacy and the country's expanding global outreach. He has also reported widely on international conflicts and terrorism, with a special focus on the Indian subcontinent. Gupta has interviewed Prime Minister Narendra Modi more than four times, including Modi's first interview with the print media after becoming Prime Minister in May 2014. His other interviews include three with the Dalai Lama, as well as conversations with Benjamin Netanyahu, Amit Shah, Yogi Adityanath, S. Jaishankar, Nirmala Sitharaman and Piyush Goyal. He is the author of Indian Mujahideen: The Enemy Within (Hachette, 2011) and Himalayan Face-off: Chinese Assertion and Indian Riposte (Hachette, 2014). He was awarded the Chevening-Wolfson Joint Scholarship at Wolfson College, University of Cambridge, UK, in 1998 and participated in the International Visitor Leadership Program (IVLP) of the US State Department in 2006. He received the Ben Gurion Prize from Israel in 2011 and the K. Subrahmanyam Prize for Strategic Studies in 2015 from the Manohar Parrikar Institute for Defence Studies and Analyses (MP-IDSA). Since 2024, he has hosted Point Blank, Hindustan Times' weekly YouTube show on global geopolitics.Read More

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