# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2013-08-23 07:12:40 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/370805776031703040) RT @guardiantech: GCHQ warned of potential risk from laser spying at Guardian offices http://t.co/yYwxD0xmwZ