About a dozen government websites including that of the defence ministry went down for more than eight hours last Friday, with rumors that they have been hacked by the Chinese. However, the government ruled-out any hacking.
Mark Zuckerberg, the founder of Facebook on Wednesday wrote an apology stating about the whole fiasco. Here is also the timeline of the events unfolded from Data Analytica's time in Facebook to the complete ban of it.
The same vulnerabilities had been exposed two years ago by an IITian; but didn't even get a response from BSNL. Elliot Alderson, a French security researcher, in a series of tweets on Sunday, shared what went wrong with BSNL.