This was my favorite part
Methods to obfuscate and spread malicious backdoor code throughout open-source code are already well developed and research is progressing rapidly.
The bit they linked to about it being "well developed" and "progressing rapidly" was tenuous evidence (at best) that the FBI paid entrenched and somewhat trusted developers to implant backdoors in the BSD IPSEC stack in 2000-2001 for monitoring site-to-site vpn encryption traffic.
This whole article is full of lols.
The gist of their article is that you can *possibly* use a few different techniques to locate 1-2 wallets with decent values of bitcoins in them, at which point you would specifically target those users. So it's basically like watching expensive houses and waiting for their owners to break in... not exactly going to make you wealthy or destroy confidence in home security...