A key Department of Homeland Security information-sharing database was accessed by an unknown threat actor in recent weeks, potentially exposing sensitive data exchanged between federal, state, local and industry partners, according to two people familiar with the matter.
DHS investigators are probing the intrusion of the Homeland Security Information Network, said both people, who spoke on the condition of anonymity because the incident is sensitive. The hackers’ affiliation and whether any documentation was pilfered from the system are both unclear.
Read more…
Source: Nextgov
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- U.S. accuses American of allegedly wiping his phone using a ‘duress’ password during border search
July 24, 2026
The U.S. Justice Department is prosecuting an American for allegedly providing U.S. border authorities with a passcode that wiped the contents of his phone, according to an indictment and media reports. This is thought to be the first known case in the United States where federal prosecutors have charged someone for the alleged destruction of data ...
- CISA has expanded the scope of its alert on Iranian-affiliated hackers attacking critical infrastructure
July 23, 2026
The US Cybersecurity and Infrastructure Security Agency (CISA) has expanded the scope of its alert on Iranian-affiliated hackers attacking critical infrastructure, including water and energy facilities. The original advisory focused on programmable logic controllers (PLCs) manufactured by Rockwell Automation/Allen-Bradley. The update warns that the activity may also target devices from Schneider Electric, Siemens, “and potentially other branded/manufactured PLCs.” The conflict between ...
- Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration Suite
July 23, 2026
A group of Russian state-supported cyber actors has been targeting and compromising various Western government and commercial organizations using the Zimbra Collaboration Suite (ZCS) software since at least July 2025. The Russian state supported advanced persistent threat (APT) group’s activity is tracked in the cybersecurity community under several names (see Cybersecurity industry tracking), primarily as ...
- Rental giant Carla leaks user names, emails, and phone numbers ahead of summer holiday break
July 22, 2026
Car rental comparison and booking platform Carla kept a database with sensitive customer information unlocked on the open internet, freely available to anyone who knew where to look. Cybersecurity researchers from Cybernews reported finding an exposed Amazon Web Services (AWS) bucket with approximately 48,000 PDF files. These files, which was later determined belonged to Carla, contained car rental details ...
- FBI Warns of Scammers Impersonating the IC3
July 20, 2026
This Public Service Announcement contains updated information about an ongoing fraud scheme where criminal scammers are impersonating FBI personnel facilitating Internet Crime Complaint Center (IC3) complaints to deceive and revictimize individuals. This scheme combines several exploitation tactics to include the targeting of previous victims, the use of artificial intelligence (AI)-generated videos to create fictitious or misleading promotional ...
- Hackers breached DHS after alarms were twice ruled ‘false positives’
July 17, 2026
Hackers managed to find their way into the US Department of Homeland Security’s primary information sharing platform, gaining unfettered access to the HSIN network that hosts unclassified information that multiple US agencies and international rely on. The hack allowed the attackers to modify server files, run malicious code and steal credential files while installing backdoors and ...