Illinois Department of Human Services, client names and SSNs, misconfigured voicemail
“To leave a message, press ‘1234’ and listen to confidential client voicemail containing SSNs and other identifying information”.
The compromised information dated back to mid-November 2005.
Additional details at the Belleville News-Democrat, which notes that this is a repeat offender — the same office left unshredded confidential documents in a trash bin until the paper reported on it.