History

Priority

recommended

Nov 2018

Removed

Removed due to being better served as supporting information for security control 0278.

2017

Where an email is received with an unknown protective marking from an Australian oroverseas government agency, users should contact the originator to determine appropriatesecurity measures.

2015

Where an email is received with an unknown protective marking from an Australian oroverseas government agency, users should contact the originator to determine appropriatesecurity measures.

2010

It is recommended that where an email is received with an unknown protective marking from an Australianor overseas government agency, personnel contact the originator to determine appropriate security measures.