代码里最“不明觉厉”的部分来了：
The energy regulator Ofgem’s quarterly cap will drop by 7% for the three months from April to £1,641 a year for the average combined gas and electricity bill in Great Britain for those paying by direct debit, from £1,758 under the current January-March cap.
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When you overload a credential used for authentication by also using it for encryption, the “blast radius” for losing that credential becomes immeasurably larger.
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