By the end of the week, Casey Anthony will be a completely free woman. But we will never know when it happens.

Florida Department of Corrections officials said Monday that they will not announce publicly the end of her supervision because of security concerns.

Anthony has received several death threats.

It will be a year this week since Anthony first reported to the Department of Corrections to serve a year of probation on a check fraud conviction. She has been serving the probation sentence at an undisclosed location in Florida, but has had to report to her probation officer every month.

The Orlando mother was acquitted last year of murdering her 2-year-old daughter, Caylee, in a trial that captivated the nation.

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The Associated Press contributed to this report.