Babus in the defence ministry are scratching their heads to ward off hacking, and many are now becoming nostalgic about the good old days of snail mail.

After being told not to use the internet for official transfer of data and for uploading classified files on computers connected to the net, they are reminiscing those coloured cardboard folders of yore, containing confidential files, letters and data.

When you have good neighbours like China and Pakistan whose hackers steal nearly six million files worldwide every day, going back to postal days is not a bad idea, quipped an officer.