alt Hacker NewsBigger WTF is why critical systems still use unencrypted gps signal. It is like using plain SMTP emails for banking transactions, and relying on "sender" for authentification.
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themafia • yesterday at 9:53 AM
They're falling back to the C/A (coarse, civilian) signal. Part of the attack is to drown out the frequency where the P (fine, military) signal is so they can more easily attack the civilian signal.
There's another frequency they could be using that is higher power but hasn't been put into production yet.
An even bigger WTF is why GPS data isn't signed with some official key so spoofing is impossible.