Japan and the 10 members of the Association of Southeast Asian Nations will jointly develop a mechanism to combat cyber-attacks.
"We note the importance of strengthening our collective efforts in cybersecurity in order to create a secure business environment," they said in a joint statement issued Friday after a two-day ministerial meeting in Tokyo.
They plan to come up with a system aimed at predicting attacks and issuing warnings when viruses are detected.
Japan has received monitoring data on computer-based attacks from three ASEAN members — Indonesia, Malaysia and Thailand — and plans to include all 10 to launch a comprehensive system.
A deal was also reached to establish a mechanism for ASEAN members and Japan "to enable information sharing and quick responses to cyber-incidents through activities such as cyber-exercises."
ASEAN plans to train 1,000 people over the next five years on information security.