The compromise, if confirmed, would be the latest in a string of cybersecurity failures at the F.B.I., which said it was investigating the matter.
<iframe src="https://statesidedaily.com/embed/cluster/6438ee40b9d6d807aef579882e23c0b9c33d94a9" width="100%" height="320" style="border:0;max-width:680px" loading="lazy" title="Hackers Say They Stole Thousands of Sensitive F.B.I. Personnel Records"></iframe>
The compromise, if confirmed, would be the latest in a string of cybersecurity failures at the F.B.I., which said it was investigating the matter.
