How can i contact digital defense for customer support? Contact us to learn more about our offerings and how Digital Defense can help safeguard your data and protect your business. Client Support Email: [email protected] Form Submitted.How do i contact the department of defense by phone? 1400 Defense Pentagon. Washington, DC 20301-1400. Public Inquiries: 703-571-3343. Press/Media: 703-697-5131. General Questions or Comments About DoD. Doing Business With DoD. DoD Website. Contact Senior DoD Officials.What is digital defence and total defence? Digital Defence is the new sixth pillar of Total Defence. The other five pillars of Total Defence are Military, Civil, Economic, Social and Psychological Defence. The heightened awareness of defence in the digital domain is critical for Singapore and Singaporeans in view of the increasing pace of global digitalisation.Are you on board with digital defence in singapore? Digital Defence – Be Secure, Alert, and Responsible Online – can only be successful if every Singaporean is on board with Digital Defence efforts. It takes only one weak link for a strong digital defence to be breached.