Computer systems that aren't connected to a public network are essentially unhackable, without physical access. It’s also worth noting that some computer systems, even if hackable, are far less hackable than other computer systems.
So is the system of Dubai Metro, one of the most secure in the world, is impossible to hack, as it is kept abreast of hacking methodologies on regular basis.
Dubai metro is the world's largest driverless railway, run on a completely automated system and an independent network, has an incredible chain of back-up and security even in the most unlikely cases of sabotage. Run by a handful of highly trained professionals from a central command unit called Operational Control Centre (OCC) near the Rashidiya metro station, the system has the capacity to handle multiple lines and will remain as efficient with the start of the Green Line operations.
"The OCC was built keeping the future in mind and we have the capacity to handle several lines at a time with traffic at its peak. The possibility of a goof up is almost impossible as we have the best system in place and we adhere to most sound practices," said Ramadan Abdullah, Director of Metro Operations.
Abdullah said that the best thing about the network is, "it is not connected to any other network in the world.
"Right from the power supply and security system to the network system, the entire process of metro operations is completely independent from other systems and hence has very negligible chances of sabotage, if any," he said. "Power supply to the Red Line comes from a set of three dedicated power stations. If one fails the other takes over automatically and if that also fails, which is unlikely to happen, the third station takes over, so there would be a constant supply," Abdullah informed, adding that the Green Line also has a dedicated supply source and if that blacks out one of the three Red Line power sources would step in."
About hacking of computer systems it is said that only computer that is impossible to hack is a computer that is not hooked up to the network, as Dubai metro system’s computer.