EGG hack: 20% supply minted, trading halted

I describe a recent EGG incident: Sasha rolled back a transfer and recovered the stolen funds, then loudly asked on Twitter why others had rolled the chain back.

Shortly before that, EGG was hacked and the attacker minted about 18,000 new EGG into circulation. Total circulating supply was around 90,000, so the attacker added roughly 20% by creating new tokens.

Markets reacted—wx, swop and puzzle trading for EGG was halted and the attacker had no easy place to sell the newly minted coins.