It's almost time for the annual AusCERT conference in Queensland, Australia.
And for everyone who's asked, the answer is, "Yes! There's a #sophospuzzle!"
No, you don't have to be there to join in...
Snapchat claims to let you share even "ugly selfies" because once they're viewed they "disappear forever."
US-based computer forensics geek Richard Hickman thought he'd find out how true that claim was...
If you were taken prisoner and wanted to send messages home under your captors' noses, what would you do?
Find out how a Royal Navy officer did just that during WW2, and have a go yourself at hiding a secret message in an innocent-sounding letter home!
An iPhone messaging app that claims to be "totally secure" is offering a £10,000 prize to anyone who can intercept a message from it.
Paul Ducklin wonders how you are supposed to win the prize if the app really is "totally secure"...
The Kim Dotcom saga took yet another turn today when the New Zealand Court of Appeal knocked back one of the big fella's earlier minivictories again US law enforcers.
Paul Ducklin takes you through the timeline of the story so far, and tries to guess what happens next...
For over 12 centuries an intense battle has been fought between the code-makers and the code-breakers. But despite decades of cryptanalysis, there are many ciphertexts which have gone unsolved, leaving us in mystery.
Here's our top ten list, can you solve them?
Have your joined thousands of others, and become a loyal listener to the "Chet Chat" yet?
Here's the latest Naked Security podcast, Sophos Security Chet Chat 102, discussing a range of recent and newsworthy topics from the world of computer security.
The security of web transactions is again in the spotlight as a pair of UK cryptographers take aim at TLS.
Like 2011's much-talked-about BEAST attack, it has a groovy name: Lucky Thirteen.
Public-key encryption relies on a pair of cryptographic keys, one public and the other private.
You'd think that programmers would be able to tell which one to keep private and which one to make public, wouldn't you?
Kim Dotcom's new venture, Mega, wants to shield itself from accusations of failing to take action against piracy.
It does so by using cryptography to make sure it doesn't see, and indeed cannot tell, what you've uploaded. But you have to get the crypto right...
The party-time news of the past weekend was the launch of Kim Dotcom's comeback file sharing service, Mega.
Crypto critics have already taken issue with some aspects of Mega's implementation, and Dotcom has taken issue right back at them...
Was the TURKTRUST SSL fiasco an abortive attempt at secret surveillance, or a blundering crisis of convenience?
Paul Ducklin takes stock of the situation...
By popular demand, here is a video showing you how to solve the Skyfall #sophospuzzle.
In James Bond style: recover a stolen file, decrypt it, use it to identify a famous person, find out where he was incarcerated, and geolocate the prison...
When you read a message in your inbox, should you trust that the information hasn't been tampered with or that it even comes from who it claims?
By popular request, here is the leaderboard for the Skyfall #sophospuzzle.
The solvers are listed in speed order.
Some hints to help you solve the latest #sophospuzzle before the deadline.
If you haven't tried it yet, perhaps this will help convince you that it's solvable after all. Go on - get your virtual secret agent tuxedo on, and give it a go.