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Sri Lankan Terrorists Hack Satellite

Posted by ryuzaki0 on from the can't-make-this-stuff-up dept.

SorryTomato writes "The Tamil Tigers Liberation Front a separatist group in Sri Lanka, which has been classified as a terrorist group in 32 countries has moved up from routine sea piracy to a space-based one. They have been accused of illegally using Intelsat satellites to beam radio and television broadcasts internationally. Intelsat says that they will end the transmissions 'within days.' Intelsat has been accused of having business links with Hezbollah before, but claim that they are blameless this time and LTTE was using an empty transponder."

2 of 330 comments (clear)

  1. Re:And why does it matter that they are 'terrorist by Anonymous Coward · · Score: 5, Interesting

    After taking a look at your past comments, it seems more likely that you just wanted to rationalize the antics of the violent insurgents that are basically destroying my native country, because you like that they're anti-American rebels. (Although they ARE part of the reason I came to the US, I have to thank them for that.)

    Mods- I'm not trolling here-- look at his profile if you don't believe me.

  2. Re:How? by mangu · · Score: 5, Interesting
    at least someone on Slashdot knows, I have to ask: how would they do this? Is there some form of access key or security needed to uplink to a transponder, or is it simply a matter of finding the right satellite and frequency?


    I know, because I work for a satellite company. Communications satellites normally have no protection at all, if you know the right frequency, have a powerful enough transmitter and antenna, and know where to point your signal, you can do it. And it's *extremely* difficult to avoid, there are very few technical countermeasures. You can beam a more powerful carrier over the pirate, but this means you lose the bandwidth anyhow and, in case of an intentional interference, the pirate can just shift his frequency and start over.


    It happens all the time accidentally. Sometimes amplifiers are defective, or they are inadvertently turned to the wrong frequency. These accidental interferences happen everywhere, and cost millions of dollars per year for every operator in terms of bandwidth that becomes unusable.


    Since a satellite has a wide coverage area, it's very difficult to find the transmitter. There are some very expensive systems to locate interferences, they work based on small shifts in frequency and time that depend on the transmitter location, but these systems cannot locate a transmitter with an accuracy better than tens of miles. After finding the general area where the interference originates, one must sweep the whole region with a helicopter equipped with a directional antenna. Very messy and very expensive.