The CIA and the British spy agency MI5 are being accused of working together on a hack that turned some Samsung TVs into listening devices.

Details of the plot are included in thousands of documents released by Wikileaks - although their authenticity hasn't been confirmed.

The activist group says the data lays bare the US spy agency's hacking capability.

Former director of special forces, major general Jonathan Shaw, isn't convinced:
Sky News defence correspondent Alistair Bunkall explains how the bug might have worked: