- 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 ...
- Millions of cars could be tracked and unlocked by a hidden security flaw
July 23, 2026
A car alarm vendor’s coding mistake has left millions of vehicles vulnerable to theft and location tracking. Thanks to the way dealers sell car alarms, many affected drivers don’t even know they have one installed. The device is the KARR Security System, a Bluetooth-enabled aftermarket alarm built by Acrisure Protection Group. It’s installed by dealers, primarily ...
- 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 ...
- Experts warn hackers could shut down entire power grids by hijacking cloud accounts
July 21, 2026
Whenever an AI data center thinks really, really hard, it can increase its power consumption so much to trigger disruptions and possibly even blackouts and gear malfunctions. So, is it possible for a malicious actor to trigger this scenario deliberately, in order to cause physical harm? Multiple researchers from the Zhejiang University in Hangzhou, China, wrote ...
- Colombian energy giant Ecopetrol says thousands of user accounts hit in cyberattack
July 20, 2026
Latin American energy producer Ecopetrol has revealed it was victim of a ransomware attack, and while the threat actors managed to get away with sensitive data from thousands of user accounts, they were unable to deploy the encryptor and thus disrupt the company’s day-to-day operations. In a statement shared with the public, Ecopetrol explained how an ...
- Inside an Exposed WebDAV Malware Delivery Lab
July 20, 2026
An MDR alert recently led our team to an exposed server that was doing more than hosting payloads. It was functioning as a fully operational malware delivery lab. Containing over 1,000 artifacts, the infrastructure served as a QA hub where attackers systematically tested delivery paths, social engineering lures, and WebDAV execution methods. Our analysis reveals an ...
- 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 ...
- Hugging Face confirms breach affected internal datasets and credentials
July 20, 2026
Hugging Face, a platform that hosts AI models and datasets, said its internal datasets and service credentials were compromised in a hack last week. The company disclosed the breach on Friday, but said it was still investigating whether any customer or partner data was stolen during the incident. In a blog post, the company said a dataset uploaded ...
- Ernst & Young reveals data breach following hack on support system
July 20, 2026
Ernst & Young (EY) has confirmed suffering a cyberattack in which it lost sensitive customer information, including tax data. In a data breach notification letter sent to affected individuals, the firm said that on April 23, 2026, it spotted “anomalous activity” within a third-party platform its IT team uses. This is an IT service management platform ...
- HOLLOWGRAPH: Turning Microsoft 365 Calendars into Covert Command-and-Control Channels
July 20, 2026
The Group-IB Threat Intelligence team has identified HOLLOWGRAPH, a new malware sample that we attribute, with high confidence, to the Cavern backdoor framework. This malware is one component of a larger toolkit, and it uses the Microsoft Graph API through a compromised Microsoft 365 account observed in Israel to communicate with its operators — a technique ...