Researchers tried several times to have the document declassified, including in 1992, 2004 and 2016. It was initially written to help American NSA agents crack difficult coded messages.
It’s impossible to be certain of safety while using Gmail, Yahoo mail and other web-based email systems. The best solution is a radical one: It’s time to return to plain, text-only email.
The Australian government wants to access encrypted messages, but don’t call it a “backdoor”.