Re: Electrum Developer Thomas Voegtlin: Bitcoin Unlimited Is Not a Good Idea

The assert bug was in "xthin", BU's block propagation system. That doesn't exist in Core.

http://blog.erratasec.com/2017/03/assert-in-hands-of-bad-coders.html

there were many assert bugs..
hense why core were real quick to advertise ways to attack it. because they knew of the issues in 2016 because of the issues within core

https://bitcoin.stackexchange.com/questions/43373/bitcoin-core-error-message-assertion-failed

google found thousands of results
"bitcoin core assertion failed"