Few possibilities:

1) Prelude to a war that throws them off balance (looking unlikely)

2) The vulnerability was about to be discovered so had to be used immediately

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wow 

how’d you confirm this? would love to see the info if you’re able to share

Stay Curious // iixii // Lazer Technologies // Prev: CoinDesk, Roc Nation // based

Discussion with informed party. It’s also now been reported by AlMonitor