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Those cards could be potentially compromised as well. This isn’t merely a financial problem for the developing world: Gemalto is a major manufacturer of the microchips in chip and PIN or EMV payment cards, the primary method of payment in Europe. In parts of the developing world some are largely reliant on the outdated and weak second generation cellular networks, many users rely on their SIM cards for money transfers and microfincancing services like the wildly popular M-Pesa.Īn attack on Gemalto potentially compromises the integrity of a global communication infrastructure increasingly reliant on mobile devices and the SIM cards living inside them. They were designed to streamline the billing process and prevent users from defrauding their mobile service providers in the early days of cellular use. As American Civil Liberties Union staff technologist, Chris Soghoian, and Johns Hopkins cryptographer Matthew Green noted in The Intercept article, SIM cards weren’t designed to protect individual communications. There are substantial financial implications as well. Privacy and cellular communications security aren’t the only concern here. Information regarding a report mentioning a hacking of SIM card encryption keys In a secret document reportedly stolen by the former NSA contractor and made public by The Intercept, the NSA said: “ successfully implanted several machines and believe we have their entire network…” It’s all right there – as it was said – in real time. While much can be inferred from location and device interaction information, there is no need to make inferences about plaintext communications. A massive attack on SIM cards or encryption protocols gives an attacker the ability to actually see - in plaintext - the contents of our correspondence with one another. Metadata can tell you a lot about where a person has been, who they associate with and, in fact, who a person actually is. You hear the non-technical media talk a lot of about the NSAs metadata-related activities, but it is leaks like this one and revelations about compromised pseudorandom number generators that are really troubling. If these allegations are true, it means that the NSA and GCHQ have the capacity to monitor massive amounts of cellular and data communications around the world without a warrant or other judicial approval.Īllegations have emerged that the #NSA hacked stealing crypto keys for millions of SIM cards Tweet Having the master list of these keys would give an attacker the ability to monitor voice and data communications on any devices containing a SIM card whose encryption key is on the list. It’s like a login-password pair, but entirely hardware based and therefore cannot be changed. Together, this key and that number essentially validate that your phone is, in fact, your phone. It contains the unique international mobile subscriber identity (IMSI) along with an encrypted authentication key. A SIM card is a little integrated circuit that plugs into your mobile device. SIM is an acronym for subscriber identification module. The company does business in 85 countries and operates 40 manufacturing facilities. Gemalto’s clients reportedly include mobile service providers Sprint, AT&T, Verizon, T-Mobile and some 450 other outfits. To put that in context, there are 7.125 billion humans in the world an estimated 7.19 billion mobile devices. The Intercept article in which these allegations first appeared estimates that Gemalto produces some 2 billion SIM cards every year.
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In fact, they manufacturer more SIM cards than any other organization in the world, according to the Economist.įrom Espresso: Cards on the table: the hacking of Gemalto /E6rzg507ov If you are wondering who Gemalto is, they are a global manufacturer of mobile device SIM cards. This is not to say that your communications are being monitored, but they could be at the click of a button. The latest in a long line of whistleblower Edward Snowden’s National Security Agency revelations may be among the most shocking: The NSA and its British counterpart, GCHQ, allegedly compromised the networks of Gemalto, and pilfered the encryption keys protecting untold millions, potentially billions, of SIM cards.Ī compromise of SIM cards on this scale would call into question the integrity of the entire global cellular communication system.
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