Anne Arundel County Hit By Cyberattack Again: What You Need To Know

ANNE ARUNDEL COUNTY, MD — Officials announced on Thursday that the computer network used by the Anne Arundel County government was hacked for a second time over the summer.

A county release said the latest incident was detected on Aug. 28, when an "unauthorized actor gained access to a limited number of systems and copied certain files from those systems."

"Presently, there is no indication the files have been used to commit any type of consumer fraud or identity theft or that this event was related to any previous cyber event," the release reads.

Authorities are working to determine what files were accessed, their contents, and whether they were tied to specific individuals. Should the review flag any individuals, they will be notified of the impact, according to officials.

While the county did not specify exactly how large the data breach was, it noted "there is no anticipated impact to any essential services moving forward."

2025 Cyberattack

The August data breach comes after the county experienced a similar incident in 2025 that spanned nearly a month.

It was in late February 2025 that county officials learned "certain systems" within the county network were breached by a user between Jan. 28, 2025, and Feb. 22, 2025.

"Certain files within the network were accessed or downloaded without authorization during that time," reads the release.

"Recent reports indicate that there has been a surge in these kinds of calculated cybercrimes specifically targeting state and local governments."

Related: Systems Restored At 2 MD Hospitals After Cyberattack Rattles Operations For Weeks

The county said its review of the 2025 hack was completed and that it would be sending letters to impacted individuals the week of Oct. 19.

Updates on the cyberattack came not long after Luminis Health confirmed it had fully restored its own systems after experiencing a data breach. A county spokesperson told The Banner that the two cases were unrelated.

Residents are urged to closely review any bank statements, credit reports, or explanations of benefits and to flag any unusual activity to authorities. See what to do if fraudulent activity is found.