By Leon Watson National Security Agency whistleblower Edward Snowden has revealed secrets about how British spy chiefs listen in on suspected terrorists Edward Snowden has revealed so much about how British spies work he has left the UK wide open to ­Al Qaeda attacks, it was reported today. Intelligence chiefs believe terrorists have changed their methods after the whistleblower exposed how GCHQ was listening in on them. Britain's spy bosses have already warned he put agents' lives at risk by passing secrets to Russian president Vladimir Putin in return for sanctuary. But now Government sources say MI5 and MI6 have lost their digital advantage, which allowed them to detect and foil terror plots.
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Spy chiefs believe terrorists have changed their methods
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It follows the whistleblower revealing intelligence secrets
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Sources say MI5 and MI6 have lost their 'digital advantage'
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They fear it will be more difficult to detect and foil terror plots
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