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The wizards and watchers of Silicon Valley outdid themselves in trying to justify WhatsApp, calling it a smart play for traffic and users. Facebook has looked for growth in new members internationally and in mobile, and WhatsApp - with 450 million users and 70 per cent of these active on any given day - arguably delivers Facebook both.But the deal was stock and shares - $4bn of the former. Facebook simply called WhatsApp ※incredibly valuable.§ That was it. That*s all it takes.In the shadow of WhatsApp, Oculus Rift was an rounding error. According to Facebook*s CEO Mark Zuckerberg, he is focusing on what platforms are next for entertainment and personal use. The boy wonder should take care: Oculus Rift was hitting seriously cool status among geeks and nerds, and the primary concern is that Zuckerberg*s Big Co kills what they saw as a promising technology and company.In so doing, Facebook loses the very users that have been giving it underground cool status and helping drive the excitement around it.Microsoft paid a relatively meager $2.5bn on Mojang, maker of pre-teen hit Minecraft - the most popular game in history with 100m downloads. But like Facebook, Microsoft was decidedly terse on the whys of the deal.


What does Microsoft get? The game itself and the development studios and people in Stockholm, Sweden, who built it but not the company's founder who's cashing out. What else? Microsoft wasn*t saying at the time and hasn*t said since, preferring like Facebook on Oculus Rift to avoid talking about it like it never happened or we dreamed the whole event.Microsoft chief Satya Nadella was reading from the Zuckerberg M&A script when he said simply that Minecraft is an ※open-world platform driven by a vibrant community§ that*s ※rich with new opportunities.§ The PR-friendly answer: ※opportunity. The business answer: ※wait and see. ※Opportunity§ is the buzz-phrase Nadella*s predecessor employed to justify Skype and Aquantive, neither of which worked out.Crypto toolbox, Part II In the first article in this two-parter on building your own crypto toolbox I covered older tools that have been around for a relatively long time now: Truecrypt and OpenPGP. Here, I will go in a different direction and look at ways of protecting instant messaging, general web-browsing, and how to trust the operating system where we run these tools.



If you need secure voice or video chat, the commercial Silent Phone service (from Phil Zimmermann's Silent Circle) is generally regarded as robust and trustworthy, as it builds on top of the security model of the old PGPfone. It is available for Windows, Android and iOS 每 but OS X seems to be notably absent at present.From a practical standpoint the VOIP experience on Silent Phone is not as polished as you may be used to from Skype 每 for example, there's no-to-poor echo cancellation 每 so I strongly recommend using a proper headset rather than speakers and the crummy mic built in to your webcam or laptop. For the sake of completeness it must also be noted that this is a proprietary closed-source service; it's up to you to decide if that's a deal-breaker for you. Like it or not, this is what's used and trusted in certain circles.For the instant-message generation, a plugin called OTR (Off The Record) offers end-to-end protection for communications on compatible IM services and applications.The combination used by NSA whistleblower Edward Snowden and his supporters is to use the open XMPP IM protocol, often on the Pidgin client, with this OTR plugin to provide the security. You赤d then transmit over Tor for general anonymity, using the TAILS OS for local security, which I'll come to shortly.


OTR uses some of the same Public-Key crypto concepts as OpenPGP, but with a focus on protecting live chat sessions. Once you have established a secured OTR session, you can be sure that nobody is snooping on your conversation 每 but after the fact, what you said can't be held against you. The person you're chatting with would be completely able to forge the digital signatures, meaning third parties can't prove that you yourself said something.This is in stark contrast to PGP, where a signature is a very strong proof of the authorship of a message.As with OpenPGP, you are responsible for checking the key fingerprint of the person you're communicating with. Unlike PGP, however, there is no concept of signing someone else's key to be able to transfer trust 每 you will definitely need to check manually. As with PGP, a Skype video call is suitable - I recommend doing a full Fingerprint check rather than using any question and answer alternatives, as that's what makes me most comfortable in terms of robustness of security.


There are a wide range of public servers using Jabber that is based on XMPP. Because Jabber is federated, users on one server can communicate freely with users elsewhere 每 provided that both ends offer server-to-server TLS encryption. The general Jabber server-admin community has recently moved towards absolutely requiring server-to-server encryption, which has had the effect of cutting off Google Talk users from pretty much everyone else.One Jabber server offered by the German Chaos Computer Club is used quite heavily and is available as a Tor Hidden Service, although they don't offer much in the way of guidance or hand-holding.American tech-collective Riseup offer email accounts with matching Jabber service, have very nice tutorials for a variety of chat clients (including Adium for OS X users), and their server can also be reached as a Tor Hidden Service, although you will need to request an invite to sign up for their services.The OTR plugin's website has links for some tutorials on its use. I found this one to be very thorough and covered everything for Windows. A little bit of digging elsewhere revealed a similar guide for Adium users in OS-X-land.



While you can use GPG to secure the contents of your email, a state-level adversary with extensive taps on the big intercontinental submarine cables will still be able to see that you are emailing this other person. If someone from a government or military IP address range started sending encrypted mail to known investigative journalists (or other potential enemies of the state), there's a very strong risk there 每 even if the security forces can't read the contents of the messages.Also visible for your ISP to see 每 and therefore also freely visible to the state via their ability to twist your ISP's arm in secret 每 is your web browsing, instant messaging, and anything else you're doing.The most robust way to anonymise your internet use is to use Tor (The Onion Router), which does a very robust job of evading that sort of surveillance.We know it works well because we've got the NSA's slides where they describe how much they hate it. They describe it as a CNE [Computer Network Exploitation] headache, which is a superb seal of approval.


It is worth noting that Tor provides anonymity. That's it. It does not automatically provide security or privacy. If the exit node you are using (the point where your traffic exits the Tor process and emerges on to the normal internet) is unscrupulous, evil, or just hacked, (or, run by GCHQ) it has the ability to intercept the contents of your communications. It won't automatically know who you are (e.g. your real IP address), because that is hidden by Tor 每 but it can see what you're sending and receiving.We love our gadgets and phones and suchlike. Gadgets can also make great gifts, so long as you get the right one.Some this Christmas season - like me - will no doubt have thought what a great idea it would have been to buy their partners (or some other significant loved one in the family) a new laptop, device, or tablet as a present. It is surely a quick win, and we know what we are buying, right?Not so fast. The problem in my case - and quite a few other people who work in IT - is that that person you are buying for isn*t as technical. Fair enough. Not everyone is, and nor should they be.The big mistake I made was taking my intended gift recipient (in my case my wife) to see a range of laptops so I could get a steer on what caught her interest.


※Anything within reason§ was the financial limit.There was ※umming§, there was ※ahing. Some - I'm looking at you, Hewlett-Packard - were just butt ugly so were quickly ruled out, Beats Audio or no Beats Audio. There was also the obligatory pushy salesman who was given the cold shoulder.Then she saw it - the sunset-orange colour Chromebook. This was ※the one§. I was worried. I knew straight away this was trouble - Chromebooks have their place but they are not laptops.When pressed as to why it HAD to be this device in particular all I got was: ※I like the colour and it looks cute.§ Arguments about iTunes, Word and not being able to store many files locally failed to dissuade her from the fact that this was it. The Celeron logo was what worried me more than anything. We left without making a purchase.Days later and alone in John Lewis, and in all good conscience I plumped for a Lenovo Yoga 11.2. OK, so it was roughly three times the price, but it did what her current laptop did and came with a touchscreen and a nice Hello Kitty/handbag friendly colour.

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