So in summary. Mintcoin has an attack demonstrated against it which proves it is vulnerable.
Blackcoin has suffered no attacks because it is PoS only and no known attacks have been made against the protocol. Yes an exchange was hacked but lots of exchanges get hacked especially bitcoin ones.
+1 Nice how few words are required to sum it all up. Thank you.
alright then... moving on
more sharks grabbing coins under 7k... not seeing much movement below that though.