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Sumyutha Sivamani

Partner

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Sumyutha (Sam) is a Partner in our Singapore office, specialising in cyber risk and insurance, focusing on incident response, crisis management, and data privacy matters. With over 13 years’ experience advising insurers and reinsurers, she is recognised by The Legal 500 as “an expert in cyber incident response work, often advising global companies”. She also has extensive experience in insurance defence and coverage across financial lines and property & casualty matters. Sam acts for a broad client base including corporates, insurers and reinsurers.

"Clients value my responsiveness, clarity and ability to provide decisive, commercially grounded advice in high-pressure situations."

"My practice focuses on insurance and reinsurance, particularly cyber risk. I enjoy the fast-evolving nature of the work, helping clients manage critical incidents amidst shifting regulatory landscapes across the region. I also have expertise in complex financial lines and property & casualty matters, and I enjoy helping clients navigate complex coverage issues.

My practice is inherently international, regularly advising insurers and multinational clients on cross-border cyber incidents, coverage and regulatory issues across Asia. I frequently coordinate multi-jurisdictional responses, working with local counsel, forensic experts and stakeholders to deliver consistent, strategic advice.

Clients value my responsiveness, clarity and ability to provide decisive, commercially grounded advice in high-pressure situations. I provide practical, solution-oriented advice and work closely with stakeholders to deliver efficient, commercially focused outcomes across jurisdictions."

Sam's recent work highlights:

The below matters were advised on by Sam at her previous firm. 

Advised a Malaysian financial institution on a large-scale cyber fraud involving significant unauthorised transactions. Led incident response, coordinating forensic investigations, managing regulatory engagement and advising on legal exposure, reputational risk and recovery strategy in a highly regulated, high-stakes environment. 

Advised a multinational on a large-scale ransomware incident in Vietnam causing significant business disruption. Led incident response, overseeing forensic investigations, managing regulatory notifications and insurer engagement, and coordinating stakeholder communications to support swift recovery and minimise reputational impact. 

Advised an international insurer on a complex, high-value cyber policy coverage dispute arising from a cross-border claim. Provided strategic coverage advice, securing a favourable outcome in a technically and commercially complex matter.

Directory quotes

Recommended – Data Protection and Cyber Security (Legal 500 2026 - Singapore)

Memberships

Law Society of Singapore

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