Tài liệu Silver needle in the Skype

From a ne twork s e c uri ty admi ni s t rat or p oi nt of v i e w
Al mos t e v e ry t hi ng i s obfus c at e d (l o ok s l i ke /de v /random)
Pe e r t o p e e r arc hi t e c t ure
man y p eers
n o clear id en t ificat ion of t h e d est in at ion p eer
Aut omat i c al l y re us e prox y c re de nt i al s
Traffi c e v e n whe n t he s oftware i s not us e d (pi ngs , re l ay i ng)
=⇒ I mp os s i bi l i ty t o di s t i ngui s h normal b e hav i our from i nformat ion
e x fi l t rat i on (e nc ry pt e d t raffi c on s t range p ort s , ni ght ac t i vi ty )
=⇒ Jams t he s i gns of re al i nformat i on e x fi l t rat i on