In modern times, QR codes are becoming very popular in our daily lives. Smartphones are used to scan the QR codes and the contents gets uploaded on the phone. They are more useful and popular than standard barcodes as they can store (and digitally present) more details, information like url links, text and geo coordinates.
If reports are to be believed The National Security Agency the watchdog for the US government had started a program called MYSTIC way back in the year 2009. According to a new Edward Snowden leak reveals more details on the NSA’s bulk data collection practices for intelligence operations. Reports of the Washington Post published says that the NSA’s MYSTIC voice interception program began in 2009.