Saudi Arabia has begun to link citizens' fingerprint with new SIM card registration to keep track of users and fight terror, according to regional media.Citing London-based Saudi newspaper al-Hayat, the Middle East Eye reported that fingerprint data will be shared with the kingdom's National Information Centre to “confirm the identity of the buyer”.A Saudi telecoms company is set to propose a fingerprint-ID system for the registration of mobile-phone lines, in an attempt to curb the illegal resale of SIM cards registered under other people's names, reported Aleqtisadiah.A source working in the communications industry told Hayat: “The first phase of the fingerprinting scheme is being implemented from today (Tuesday). The decision was taken last year but implementation has been delayed until this year because some of the mobile phone companies working in the kingdom had to get fingerprint-reading equipment from outside Saudi Arabia.”The law was initially passed on 2 September 2015, according to Hayat, after the Ministry of Interior requested authorities step up efforts to stop people using mobile phones for purposes that “threaten national security”.