[Aeolun]

So the first three layers can be solved with pen and paper, and for the fourth you might need a computer.

Do we still consider that encryption in this day and age? I know it technically is , but..

[mattkrause]

It's a fun little contest/PR thing/recruiting tool! (Maybe the headline should reflect that, @Dang?)

It's not like the PM is sitting there with a coin in hand, trying to decipher reports from the Australian Defence Forces....

[thrown_22]

In Australia soon that's the only encryption you'll be allowed.

[BitwiseFool]

Flip a coin, Heads or [REDACTED]?