The hi-tech badges made for hackers

Hi-tech badges made by "hackers" for "hackers" were in great demand at the recent Def Con cyber-security conference.

Hardware experts spent months creating the unofficial electronic wearables, which came complete with a mini processor, hidden "Easter eggs", botnets and secret unlock codes to add features.

Owners could use their badges to hack similar devices around the conference for "lulz" - in other words to have fun at another's expense.

BBC Click’s Catharina Moh met up with AND!XOR whose badges caught the attention of Def Con founder "Dark Tangent".

See more at Click's website and @BBCClick.