National Cyber Security Awareness Month (NCSAM) is observed in October in the United States of America.

[1][2] Started by the National Cyber Security Division within the Department of Homeland Security and the nonprofit National Cyber Security Alliance, the month raises awareness about the importance of cybersecurity.

[3] In 2004, the Department of Homeland Security and the National Cyber Security Alliance launched National Cyber Security Awareness Month as a broad effort to help Americans stay safe and secure online.

[2][4] Initial efforts included advice like keeping antivirus programs up to date.

[5] Since 2009, the month has included an overall theme, "Our Shared Responsibility," and weekly themes throughout the month were introduced in 2011.