◎ 失密 shīmì
[divulge a secret; disclose a secret; give away a secret]由于不小心而泄露了机密
严重失密

保密

1.give away official secrets due to carelessness; leak official secrets due to carelessness; betray confidential matters

泄漏机密或秘密。《小说选刊》1981年第9期：“信已被拆，显然已失密了。”