  One of the main challenges faced by a user today is protecting their privacy,
especially during widespread surveil- lance. This led to the development of
privacy infrastructures whose main purpose is to guarantee users privacy.
However, they are being misused by attackers who consider them to be an
exploitable resource to perform illegitimate activities. This paper proposes to
analyze and assess the threats that occur due to subverting privacy
infrastructures. It begins with an outline of critical privacy infrastructures
that were developed. An overview of rising threats of subverting the most
prominent privacy infrastructure, Tor is presented. Additionally, a brief
assessment of the severity of these threats is discussed and the paper
concludes by recommending the scope for further research to mitigate the risks
due to such threats.
