Yes you read the title right or you may have already used it. WhatsApp, the infamous instant messaging app, used by almost everybody, has enabled the Video Call feature for all its users since its latest update this week. The feature was only for its beta users but its now finally here for all of us. I decided to take it for a spin and following is my take on it.
Following a Parliamentary Question  to the Prime Minister of Mauritius on Tuesday 19 April 2016 by an Opposition member, an widespread interest was created about telephone tapping in the country especially after what the Opposition member described as a van lurking around the house of opposition members in order to listen to conversations. Days later, a weekly newspaper published a 3-page article  on the whole phone tapping in Mauritius and mentioned about an IMSI-Catcher which is basically a device that spoofs your mobile telephony provider’s Base Transceiver Station (In an nutshell, Base that connects your mobile phone to the telephony network) and acts as a middle-man between your device and the providers network thus capturing all of your communications. Out of my usual curiosity, I wanted to know more about it and clarify some doubts I had. I knew about the IMSI-Catcher technique and remembered an article by a hacker by the name of Simone Margaritelli who once assembled a relatively cheap bench rogue-BTS using a Raspberry Pi  that, if tweaked, could be used for that same purpose, intercept communications. I contacted him and he very kindly accepted to reply to my questions.
WhatsApp got some new and amazing features in its latest beta release ( > 2.15.xx as at 31/03/16). Below is a little review of some of them after downloading and install a beta release (2.16).
So, we are again at the New Year, and that’s the pain for sysadmins of messaging services or any other telecommunication systems. And that’s because of the servers’ or networks’ saturation due to the huge traffic from their users, trying to send New Year wishes messages to their friends and relatives. Usually such issues happen with mobile phone networks, GSM, 2G, 3G, 4G etc, but for the second consecutive year, the online services too are suffering from those bottle necks. The most complained service this year or last year for some, is WhatsApp. At first, I got messages from friends in Mauritius asking about the issue, but it was working fine for me. Some even thought the service was blocked by the government. Mine was working fine (In Turkey), and posted about the WhatsApp issue on my Facebook page , and then noticed that it’s not in Mauritius only. Then, as time went, I started to experience issues here too, and it’s obvious, the New Year is 2 hours before Turkey’s , and it also confirms the fact that the issue was due to high traffic. News websites were also reporting about same . But its good to note that the official Twitter Account @wa_status where WhatsApp post system updates, had no indication at all about that downtime, but their in-app system status page displayed a “server experiencing a problem” message.
To check about the worldwide extent of the problem, I collected testimonials from friends around the world and confirmed once more my hypothesis (Sorry for that term, I had an Stats exam this morning 😛 )
Devices are everywhere; from around our wrists to inside our pockets to huge server farms. Those Engineering excellency are roughly metal structures with electronics components and one of the intangible marvel of the human mind inside them – The Software; those piece of code that make sense to everything. People either take writing those codes as their job or their hobby; but when the two are mixed, great stuffs happen!
Usually, important softwares and application are written by several programmers from one specific company or from developers around the globe contributing on the same project. One of the latter is Logananden Velvindron, a Mauritian coder. (about whom I wrote some time back). He helped to fix bugs on critical systems or wrote improvements to existing softwares. The great news is that, some times his improvements are deployed on production servers and systems from famous companies like Google! The latest in date is from CISCO which implemented an updated version of ntp which happens to contain Logan’s code. On that occasion, I paid Logan the usual virtual visit and got a little word from him.