https://www.rt.com/usa/355558-linux-vulnerability-websites-attacks/
A flaw in the Linux operating system lets hackers inject malware into downloads and expose the identities of people using anonymizing software such as Tor - even for those who aren't using Linux directly.
In a Wednesday presentation at the USENIX Security Symposium in Austin, Texas, researchers with the University of California, Riverside showed that the flaw lies in the Transmission Control Protocol (TCP) used by Linux since late 2012.
use UDP ;)