The US government has urged all internet users to play their part in protecting the network from attack. The call comes at the start of National Cyber Security Awareness month.
The Homeland Security Department said "all computer users, not just industry and government, have a responsibility to practice good 'cyber hygiene'".
Security experts agree and have said users need to think before they click as part of an effort to highlight how vulnerable e-mail is to cyber scams.

source/full story: bbc