[Bitcoin-development] Double spend detection to speed up transaction trust

[Matt Corallo]

On Fri, 2011-08-05 at 02:14 +0200, Stefan Thomas wrote:
> (I know Bitcoin has UPnP support, 
> but I haven't found any numbers on how widely the IGD protocol is 
> actually deployed. Wikipedia says that "some NAT routers" support it and 
> that it's not an IETF standard. All routers I've actually seen in real 
> life had it disabled by default.)
It used to be enabled by default on virtually all routers a couple years
ago, but too many "security researchers" complained that it was a "huge
security vulnerability" (I guess they hadn't heard of stun or outgoing
connections) so its not typically disabled on most routers.
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