Vulnerability Buyer Company

[mpycube () yahoo com]

Hello,

i already worked with iDefense but i have seen t hat also 2 other companies are buying 0day:
- www.zerodayinitiative.com
- www.digitalarmaments.com 

The offer of the second one look really interesting. Does anyone has worked with those company? which one is better? 
does exist others company?

thanks guys...

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