1 Dec, How the Circle Line rogue train was caught with data
From August of this year to November, signal interference on the Circle Line caused a host of problems culminating in a serious service disruption on November 2. The Circle Line disruptions were investigated by a multi-agency team from LTA, SMRT, a DSO National Laboratories team, DSTA engineers and GovTech scientists.
While the whole mystery of the Circle Line signal interference was finally solved, MetaFilter member destrius makes a few interesting points in a follow-up comment. According to the comment, the wireless communications system in the trains runs on top of 802.11, or Wi-Fi, in other words. If a “rogue train” could overwhelm the Wi-Fi network and cause loss of communications, couldn’t a “rogue agent” also do the same?